Question

If time taken by a particle to cover a distance S is proportional to √s, then particle is moving with (particle starts from rest)

1) Uniform velocity
2) Uniform acceleration
3) Increasing acceleration
4) Decreasing acceleration

Answer 1

Explanation:

Distance covered x∝

t

⟹ x=k

t

Velocity of particle v=

dt

dx

=

2

t

k

Acceleration of particle a=

dt

dv

=

4

−kt

−3/2

⟹ a=

4

−k

×

k

3

2

3

v

3

⟹ a∝v

3

Answer 2

Answer:

2) Uniform acceleration

Explanation:

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