Question

15. If the displacement of a particle varies with time as
√x = t + 7, then
a. velocity of the particle is inversely proportional to t
b. velocity of the particle is proportional to t2
c. velocity of the particle is proportional to √ t
d. the particle moves with a constant acceleration

Answer 1

ANSWER

x

=t+7

⇒x=(t+7)

2

⇒v=

dt

dx

=2(t+7)

Thus, Velocity is proportional to time.

Also as a=

dt

dv

=2

Thus particle moves with a constant acceleration.

Explanation:

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