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Questions  

A car speeds up in a circular path. Which of the following figures illustrates the acceleration of the car?

a
b
c
d

detailed solution

Correct option is B

Net acceleration: a = ac2+at2                               = (v2R)2+at2As v increases, a also increases. So size of arrow should be increasing and angle between velocity and acceleration should be acute.

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Similar Questions

A particle moves along a horizontal circle with constant speed. If 'a' is its acceleration and 'E' is its kinetic energy
A) a is constant B) E is constant C) a is variable D) E is variable


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