In your everyday life, you come across a range of motions in which
Q. In your everyday life, you come across a range of motions in which
(a) acceleration is in the direction of motion.
(b) acceleration is against the direction of motion.
(c) acceleration is uniform.
(d) acceleration is non-uniform.
Can you identify one example each of the above type of motion?
Ans. (a) When the speed of a car on a road increases, the acceleration of the car is in the direction of motion.
(b) When brakes are applied to a car in motion, its speed decreases. The acceleration produced in the car is against the direction of motion.
(c) When a body is falling freely under the action of gravity, it has a uniform acceleration g = 9.8 m s-².
(d) When a car is passing through city limits on a highway, its acceleration/retardation is non-uniform depending on the volume of traffic.
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