Question

If it takes an electric toy train 5 seconds to pull a coal car 1.5 m, and it exerts a constant force of 4 N during this time, what is its power?

Answer 1

`1.2 " Watt"`

Explanation:

`Power=(fs)/(t)`

`=(4N*1.5 m)/(5s)`

`= (6Nm)/(5s)`

`= 1.2 " Watt"`