NEET 2012 Physics question

PhysicsMotion in a Straight LineNEET 2012

The motion of a particle along a straight line is described by equation: where is in metre and in second. The retardation of the particle when its velocity becomes zero, is

Answer: (1)

Solution

Velocity . It becomes zero when , i.e. . Acceleration ; at , . The

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Question ID VK-091285