In which situation is maximum work considered to be done by a force?

OA. The angle between the force and displacement is 180°

B.

The angle between the force and displacement is 90°.

C.

The angle between the force and displacement is 60°

D. The angle between the force and displacement is 45°.

E. The angle between the force and displacement is oº.

Question

Chemistry

Oompa Loompa

21 August, 05:35

In which situation is maximum work considered to be done by a force?

OA. The angle between the force and displacement is 180°

B.

The angle between the force and displacement is 90°.

C.

The angle between the force and displacement is 60°

D. The angle between the force and displacement is 45°.

E. The angle between the force and displacement is oº.

+4

Answers (1)

Know the Answer?

Carter Cross · Answer 1

Option E

Explanation:

As work is dot product of force and displacement

W=FdCos0

As Cos 0=1 so W=F. d (1)

W=F. d

as Cos 90=0 so no work will be done when angle between force and displacement is 90 degree. At angle between force and displacement is 180 degree then negative value com as Cos 180 = - 1