1 .The mass of a car is 1200 kg. il comes to rest due to retardation of 2m/s*2. Whal would be the foroe acting between the ca
road?
3. Define Inertia. Clarity the tem inertia giving practcal exampkes in daily Iit .
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1.Correct option is
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6.2 m
Retardation of car = force of friction/ man of car
=mμkmg=μkg
−a=μkg
v2−u2=2as
s=2μkgv2
s=2×0.75×10202=15400=26.67m
2.There are two forces acting in opposition to the driving force, the friction with the road and the air resistance. The air resistance is much greater than the friction with the road when a vehicle is in motion. 3.The tendency of a body to remain in its state of rest or uniform motion even when compelled by an external unbalanced force Is called Inertia. Eg: When the car which is in motion comes to a rest, the person sitting in the car tends to continue moving.
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