Question

Force and displacement of partide in direction of force are doubled.
Work would be
(a) Double
(b) 4 times
(c) Half
(d) 1/4 times

give reason for the answer...
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Answer 1

Force = f

Displacement = s

then,

workdone = Force×Displacement = fs

Now,

Force = 2f

displacement = 2s

then,

Workdone = Force×Displacement

=>2f×2s

=>4fs

So,

Correct option will be b) 4times.

That is work would be increased by 4times.

Cheers!

Answer 2

the answer is double because no condition is given as force is equal to displacement