Question

Q5. A pair of bullocks exerts a force of 140N a ploughed is 15cm long. How much work is
done in ploughing the length of the field?
OR
The kinetic energy of an object of mass, m moving with a velocity of 5m/s is 25). What will
be its kinetic energy when its velocity is doubled?

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Answer 1

its the second question

in first question data is insufficient

Answer 2

Hey there!

Given,

Force (F) = 140 N

Displacement (S) = 15 m

We know,

Work done = F * S

Work done = 140 * 15

Work done = 2100 J

Hence, work done in ploughing the length of the field is 2100 J.

Hope It Helps You!