A heavy block of mass m is slowly placed on a conveyer belt moving with speed v. If coefficient of friction between block and the belt is μ, the block will slide on the belt through distance

Question

A heavy block of mass m is slowly placed on a conveyer belt moving with speed v. If coefficient of friction between block and the belt is μ, the block will slide on the belt through distance

1 Answer

Related questions

+1 vote

1 answer

A block whose mass is 650 gm is fastened to aspring constant K equals 65 N/m whose other end is fixed. The block is pulled a distance x = 11 cm from its equilibrium position at x = 0 on a smooth surface, and released from rest at t = 0. The maximum speed ‘S’ of the oscillating block is

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

A car moving with speed u can be stopped in minimum distance x when brakes are applied. If the speed becomes n times, the minimum distance over which the car can be stopped would take the value

asked Sep 24, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

A wooden block is kept on a polished wooden plank and the inclination of the plank is gradually increased. It is found that the block starts slipping when the plank makes an angle of 18° with the horizontal. However, once started the block can continue with uniform speed if the inclination is reduced to 15°. Find the coefficient of static friction between the block and the plank.

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

A heavy box of mass 20 kg is pulled on a horizontal surface by applying a horizontal force. If the coefficient of kinetic friction between the box and the horizontal surface is 0.25, find the force of friction exerted by the horizontal surface on the box.

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

A car moving with uniform acceleration cover 450 m in a 5 second interval, and covers 700 m in the next 5 second interval. The acceleration of the car is

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

Two particles with masses in the ratio 1 : 4 are moving with equal kinetic energies. The magnitude of their linear momentums will conform to the ratio

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

If two bodies one light and other heavy have equal kinetic energies, which one has a greater momentum

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

A particle starts with a velocity 2 m/sec and moves on a straight-line track with retardation 0.1 m/s^2. The time at which the particle is 15 m from the startin g point would be

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

A stone is projected horizontally from a cliff at 10 m/sec and lands on the ground below at 20 m from the base of the cliff. Find the height of the cliff.

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

Which of the following statements regarding laws governing the friction between dry surfaces are correct?

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

A single plate clutch, with both sides effective, has outer and inner diameters 300 mm and 200 mm respectively. The maximum intensity of pressure at any point in the contact surface is not to exceed 0.1 N/mm^2. If the coefficient of friction is 0.3, determine the power transmitted by a clutch at a speed 2500 r.p.m.

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

A boy (30 kg) sitting on his horse whips it. The horse speeds up at an average acceleration of 2.0 m/s 2.If the boy slides back during the acceleration, what can be said about the coefficient of static friction between the horse and the boy.

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

A body of mass 1 kg is kept on a rough surface is being pulled by a force of 2N, what will be the value of coefficient of friction if it just begins to move. Take g = 10m/s^2.

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

A screw jack has square threads and the lead angle of the thread is α. The screw jack will be self locking when the coefficient of friction (μ) is

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

A boy (30 kg) sitting on his horse whips it. The horse speeds up at an average acceleration of 2.0 m/s 2.If the boy does not slide back, what is the force of friction exerted by the horse on the boy ?

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

A 60 mm diameter shaft running in a bearing carries a load of 2000 N. If the coefficient of friction between the shaft and bearing is 0.03, find the power transmitted when it runs at 1440 r.p.m.

asked Sep 24, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

A body of mass 1 kg is kept on a rough surface having coefficient of friction = 0.25 being pulled by a force of 2N, which frictional force will be acting on the body?

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

A body of mass 1 kg is kept on a rough surface having coefficient of friction = 0.25 being pulled by a force of 2N, what will be the value of friction force in N?

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

A body of mass 1 kg is kept on a rough surface having coefficient of friction = 0.25 being pulled by a force of 2N, after how long will the body come to rest again?

asked Sep 24, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

Suppose you place a sphere of mass ‘m’ and radius ‘r’ inside a smooth, heavy hemispherical bowl of radius of 37r placed on a horizontal table. If the sphere is given a small displacement, what is its period of oscillation?

asked Sep 24, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

A multiple disc clutch has five plates having four pairs of active friction surfaces. If the intensity of pressure is not to exceed 0.127 N/mm^2, find the power transmitted at 500 r.p.m. The outer and inner radii of friction surfaces are 125 mm and 75 mm respectively. Assume uniform wear and take coefficient of friction = 0.3.

asked Sep 24, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

If the area of contact between the two surfaces is increased by two times, what will be the effect of it on the force of friction?

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

Two shafts with an included angle of 160° are connected by a Hooke’s joint. The driving shaft runs at a uniform speed of 1500 r.p.m. The driven shaft carries a flywheel of mass 12 kg and 100 mm radius of gyration. Find the maximum angular acceleration of the driven shaft.

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

A connecting rod of mass 5.5 kg is placed on a horizontal platform whose mass is 1.5 kg. It is suspended by three equal wires, each 1.25 m long, from a rigid support. The wires are equally spaced round the circumference of a circle of 125 mm radius. When the c.g. of the connecting rod coincides with the axis of the circle, the platform makes 10 angular oscillations in 30 seconds. Determine the mass moment of inertia about an axis through its c.g.

asked Sep 24, 2022 in Machine Kinematics by Leo (38.0k points)

+1 vote

1 answer

Two shafts having an included angle of 150° are connected by a Hooke’s joint. The driving shaft runs at a uniform speed of 1500 r.p.m. The driven shaft carries a flywheel of mass 12 kg and 100 mm radius of gyration. Using the above data, calculate the maximum angular acceleration of the driven shaft in rad/s^2.

asked Sep 25, 2022 in Machine Kinematics by Leo (38.0k points)

Greg · Answer 1 · 2022-10-21T08:35:35+0000

Right option is (d) v^2/2μg

For explanation: Retardation due to friction force = μg

V^2 = 2.μg s

s = v^2/2μg.

A heavy block of mass m is slowly placed on a conveyer belt moving with speed v. If coefficient of friction between block and the belt is μ, the block will slide on the belt through distance

Please log in or register to answer this question.

1 Answer

Please log in or register to add a comment.

Related questions

Categories