A field is 100m long. If a player is able to displace himself 5m every second of 1 field to the other, how long of a does it take the player to finish his run?

Question

A physics question 1D kinematics

Answer 1

A proportion could be used:

 

1 sec / 5 m = x sec / 100 m            Multiply both sides by 100 m

100 sec / 5 = x sec                         Reduce

20= x

 

It takes 20 seconds to do the run.