ICSE Class 9 Answered
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 | 23 Jun, 2022, 06:00: PM
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 | 24 Jun, 2022, 12:22: PM
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