Question

a 2 metre high person is holding a 25 kg trunk on his head and is standing at a roadway bus terminus how much work is done by the person​

Answer 1

Answer : O Joules

Explanation :

When we say The work done by the man, We are talking about the work done by man on the trunk.

As we know,

W = F. S

Here,
F = Force exerted by the man on the trunk.
S = Displacement of the trunk in the direction of applied force.

Since, There is no displacement. S becomes 0, then W = F * 0 = 0

Work done becomes 0.

Hence, The 2 m high person who is holding 25 kg trunk does no work standing at the bus terminus.