Question

In which of the following situations has the energy of the object been increased?

A horse moves horizontally while a circus performer jumps vertically on its back.

A hammer thrower spins around while preparing to release the hammer.

A soldier runs forward, while holding a rifle above his head.

A boy pushes a lawn mower forward by pushing at a downward angle on the handle.

Answer 1

Either A hammer thrower spins around while preparing to release the hammer or A boy pushes a lawn mower forward by pushing at a downward angle on the handle.

Answer 2

But I think its the last one

Answer 3

Is that of any help?