Question

Find the work done by the normal till it reaches the buttom.

Answer 1

By the end of this section, you will be able to:

• Apply the work-energy theorem to find information about the motion of a particle, given the forces acting on it
• Use the work-energy theorem to find information about the forces acting on a particle, given information about its motion

Answer 2

Answer:

w = mgh

Explanation:

force in the direction of the slope (F) = mgsinØ

distance covered in the direction of the slope (s)

= hcosecØ

Now,

W = F.s = mgsinØ.hcosecØ = mgh.