A car of mass m starts form rest and acquires a velocity along east 
(v > 0) in two seconds. Assuming the car moves with uniform acceleration, the force exerted on the car is.
A
eastward and is exerted by the car engine.
B
eastward and is due to the friction on the tyres exerted by the road.
C
More than 
eastward exerted due to the engine and overcomes the friction of the road.
eastward exerted due to the engine and overcomes the friction of the road.
D
exerted by the engine.
Text Solution
Verified by ExpertsThe correct answer is:
B
: here
Mass of the car = m
Initial velocity 
(as the car starts from rest)
Final velocity 
along east
T = 2s
Using 
at
Force exerted on the car is
Eastward
This is due to the friction on the tyres exerted by the road
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