the mass of a car along with the driver is 1000 kg and it is all creation with 6 m/s2 within the distance of 500m. calculate the work done by the engine of the car
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Answer:
Given,
final velocity,v=0
Initial velocity,u=30m/s^-1
Force=mass*acceleration
f=ma
a = f / m = -5000 / 1000 = -5ms^-2
From the first equation of motion,
v = u + at
0 = (30)+(-5t)
0 = 30 - 5t
5t = 30
t = 30/5
t = 6
Hence, after 6 sec the car will stop.