+1 vote
in Machine Dynamics by (34.3k points)
The balance energy required for punching is supplied by the flywheel by ________

(a) Increase in its kinetic energy

(b) Decrease in its kinetic energy

(c) Decrease in its potential energy

(d) By variation of mass

I had been asked this question by my school teacher while I was bunking the class.

Query is from Flywheel in a Punching Press in division Turning Moment Diagrams and Flywheel of Machine Dynamics

1 Answer

0 votes
by (38.6k points)
The correct choice is (b) Decrease in its kinetic energy

The explanation: The balance energy is to be supplied by the flywheel by the decrease in its kinetic energy when its speed falls from maximum to minimum.

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