Question

a motor cycle travels 90.0 km/h. how many seconds will it take the motorcycle to cover a distance of 2.10 x 103 meters

Answer 1

Time = Distance / Speed
= (2.1 × 10³ m) / (90 × 5/18 m/s)
= 84 s

Time taken by motorcyclist is 84 seconds

Answer 2

Given,

Speed of the motor cycle=90km/h

Distance covered=2.10×10³meters

To Find,

Time taken by motor cycle.

Solution,

So, we have to convert 90km/h into m/s

So,it will be=90×5/18=25m/s

We have the formula,

time=distance/speed

      =2.10×10³m/25m/s

      =84seconds

Hence, 84 seconds is the time taken by motor cycle to cover the distance.