Question

A 3250 N car is pushed a distance of 35 m the power was 11375 J, how long did it take?

Answer 1

Answer:

10.8s

Explanation:

Given parameters:

Force on the car  = 3250N

Distance  = 35m

Power  = 11375W

Unknown:

Time taken = ?

Solution:

To solve this problem;

 Power is the rate at which work is done

         Power = $\frac{work done }{time}$  

  Work done  = force x distance  = 3250 x 35  = 123200J

Now;

          11375  = $\frac{123200}{t}$  

           11375t  = 123200  

                   t  = 10.8s