First slide

Introduction to oscillations

Question

Which of the following four statements is false?

Moderate

A

A body can have zero velocity and still be accelerates
B

A body can have a constant velocity and still have a varying speed
C

A body can have a constant speed and still have a varying velocity
D

The direction of the velocity of a body can change when it’s acceleration is constant

Solution

about (1)option ,at the extreme position of oscillator, velocity = 0, but acceleretion is not 0,
about(3)option, body moving on circular path, can have constant speed with varying velocity
about(4) acceleration is rate of change of velocity,
hence option (2) is false

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