Question

The speed of the moving car is 72 km/h calculate its speed in kilometre per hour and metre per second

Answer for class 7 science ch :13 motion and time NCERT

Answer 1

Answer:

Thus in this case we have the speed of the car as, 72 km/h. Therefore to calculate the speed in m/s we need to multiply 72 km/h with 10003600. ⇒72km/h=20m/s. Hence the speed of the car in m/s is 20.

Answer 2

Answer:

answer

=72×(5/18) ml/s

=ans