Question

Convert a speed of 72 km h1 into cms1

Answer 1

Explanation:

so lets first convert it into m/s

so 72 km/h ÷ 3.6

= 72 × 5/18 = 20 m/s

now 1m = 100 cm

so 20 m = 20× 100 = 2000cm

so speed converted will be = 2000cm/s answer