Questions
A body is moving in a circle with a speed of 1 ms-1. This speed increases at a constant rate of 2 ms-1 every second. Assume that the radius of the circle described is 25 m. The total acceleration of the body after 2 s is
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Correct option is C
a,=2 ms-2,v=u+at=1+2×2=5 ms-1 ac=v2r=5225=1 ms-2 Net acceleration =ac2+at2=12+22=5 ms-2Similar Questions
Assertion : When the velocity of projection of a body is made n times, its time of flight becomes n times.
Reason : Range of projectile does not depend on the initial velocity of a body.
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