Home
Class 12
PHYSICS
The distance covered under a journey is ...

The distance covered under a journey is proportional to the square of time. The body under motion has

A

uniform acceleration

B

variable acceleration

C

uniform retardation

D

uniform velocity

Text Solution

Verified by Experts

The correct Answer is:
A
As, `s prop t^(2)`
`rArr s = k t^(2)`
`rArr (d s)/(d t) = 2k t`
It is time-dependent and so velocity is not uniform.
`(d^(2)s)/(d t^(2)) = 2k`.
It is positive and a constant.
Hence, it denotes uniform acceleration.
Promotional Banner

Similar Questions

Explore conceptually related problems

The distance travelled by a body is proportional to the square of time. What type of motion this body has ?

The distance covered by a moving body is directly proportional to the square to the time. The acceleration of the body is

In a straight line motion the distance travelled is proportional to the square root of the time taken The acceleration of the particle is proportional to :-

Bus covers a certain distance at constant speed in certain time .Speed of bus is directly proportional to covered distance and inversely proportional to the square root of time taken by bus .If bus covers 60 km . In 4 hrs . At a speed of 40 km /hr then find distance travelled in 9 hrs . at speed of 44km./hr ?

If a point is moving in a line so that its velocity at time t is proportional to the square of the distance covered, then its acceleration at time t varies as