Physics-
General
Easy
Question
The motion of a particle is described by the equation where and .Its instantaneous velocity at time will be
The correct answer is:
Instantaneous velocity
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A body A moves with a uniform acceleration and zero initial velocity. Another body , starts from the same point moves in the same direction with a constant velocity . The two bodies meet after a time. The value of is
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The and coordinates of a particles at any time are given by and where and are in metre and in second. The acceleration of particle at is
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Statement 1: When an automobile while going too fast around a curve overturns, its inner wheels leave the ground first
Statement 2: For a safe turn the velocity of automobiles should be less than the value of safe limit velocity
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Statement 2: For a safe turn the velocity of automobiles should be less than the value of safe limit velocity
Physics-General
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Statement 1: The vector is a unit vector.
Statement 2: Unit vector is one which has unit magnitude and a given direction.
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Statement 2: Unit vector is one which has unit magnitude and a given direction.
Physics-General
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Statement 1: In circular motion, the centripetal and centrifugal force acting in opposite direction balance each other
Statement 2: Centripetal and centrifugal forces don’t act at the same time
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Physics-General
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Statement 1: Improper banking of roads causes wear and tear of tyres
Statement 2: The necessary centripetal force in that event is provided by the force of friction between the tyres and the road
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Statement 2: The necessary centripetal force in that event is provided by the force of friction between the tyres and the road
Physics-General