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प्रश्न
What do you understand by the term acceleration?
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उत्तर
“Rate of change of velocity with respect to time is called acceleration.” S.I. unit of acceleration is ms−2.
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संबंधित प्रश्न
Name the physical quantity whose SI unit is :
(a) m/s (b) m/s2
What term is used to denote the change of velocity with time ?
Define velocity. What is the SI unit of velocity ?
Find the initial velocity of a car which is stopped in 10 seconds by applying brakes. The retardation due to brakes is 2.5 m/s2.
Explain the meaning of the following equation of motion :v = u + at, where symbols have their usual meanings.
A train starting from stationary position and moving with uniform acceleration attains a speed of 36 km per hour in 10 minutes. Find its acceleration.
Which of the following could not be a unit of acceleration?
State how the velocity-time graph can be used to find
The acceleration of a body
For a uniformly retarded motion, the velocity-time graph is _____________
Derive the following equations for uniformly accelerated motion:
(i) v = u + at
(ii) `"S = ut" + 1/2 "at"^2`
(iii) v2 = u2 + 2aS
where the symbols have their usual meanings.
