Question

A car travelling with speed 10 km/hr can stop within a distance 20 m if the car is mving with speed 20 km/hr then stoppif distanve will be

Answer 1

stopping distance = (m×u×u)/2F

20=m×10×10/2F

m/2F = 20/100

new stopping distance = m×20×20/2F

= (20/100)×20×20

=20×2×2

=80m

Hope it helps