a car moving with a velocity of 72 km h-1 is brought to rest by applying brakes in 15 seconds find the retardation of the car

Asked by 2014.476bavyashree | 23rd Jun, 2022, 06:00: PM

Expert Answer:

v = u + at 
v = 0 m/s 
u = 72 km/h = 20 m/s
0 = 20 + a x 10
10a = -20 
a = - 2 m/s2 
 
Retardation, a = - 2 m/s2 

Answered by Shiwani Sawant | 24th Jun, 2022, 12:22: PM