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प्रश्न
If the displacement of an object is proportional to the square of time, then the object is moving with :
विकल्प
uniform velocity
uniform acceleration
increasing acceleration
decreasing acceleration
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उत्तर
uniform acceleration
We are given with the relationship that,
x = kt2
Differentiating it twice we get,
v = 2kt
a = 2k
Where,
v - velocity
a - acceleration
So, the answer is
(b) Uniform acceleration
संबंधित प्रश्न
When is the magnitude of displacement equal to the distance?
What information about the motion of a body are obtained from the displacement-time graph?
Can displacement-time sketch be parallel to the displacement axis? Give a reason to your answer.
What can you say about the nature of motion of a body if its displacement-time graph is A curve.
Define Distance.
A body is moving along a circular path of radius r. What will be the distance and displacement of the body when it completes:
Half a revolution
A body is moving along a circular path of radius r. What will be the distance and displacement of the body when it completes:
`(3/4)` th of a revolution
A 50 m long train passes over a bridge at a speed of 30 km/h. If it takes 36 seconds to cross the bridge, calculate the length of the bridge.
Give one example where the displacement is zero but the distance travelled is not zero.
A scalar quantity has ______.
