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How is effect of speed on draft expressed?

(a) Ds = D0 + KS^2

(b) Ds = D0 – KS^2

(c) Ds = D0 * KS^2

(d) Ds = D0 / KS^2

I have been asked this question in homework.

My enquiry is from Disc Plough in division Tillage, Disc Plough & Numericals of Farm Machinery

1 Answer

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Best answer
Correct choice is (a) Ds = D0 + KS^2

The explanation is: Draft increases with increase in speed in most of the tillage implements. This may be due to rapid acceleration of any soil that is moved appreciably.

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