Question

work power and energy questions ​

Answer 1

the answer of 33 will be (c) 3.6 j

As Follows-

the mass hanging will be 0.6/2 X 4kg = 1.2kg

as the center of mass will be halfway of the hanging it would be at 60/2 = 30cm

So as work= force x displacement

W = mgh

= 1.2 x 10 x 0.3 = 3.6 j

Answer 2

Answer:

Hope this will help u a lot