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A car moving with a speed of 35 m/s sees a child standing in the
middle of the road. The driver of the car applies brakes and brings the
car to rest in 5 sec, just in time to save the child. Calculate the average
stopping force of the vehicle, if the mass of vehicle and the driver is
300 kg.

Respuesta :

ayalewaw2006

Answer:

-2100N

Explanation:

let's find acceleration first,

a=v-u/t

a=0-35/5

a=-35/5

a= -7m/s^2

then lets find force,

F=ma

F=300×-7

F= -2100N

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