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प्रश्न
Fill in the following blank with suitable word :
A motorcycle has a steady……………. of 3 m/s2. This means that every………………. its…………….. increases by………….
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उत्तर
A motorcycle has a steady acceleration of 3 m/s2. This means that every second its velocity increases by 3m/s .
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संबंधित प्रश्न
Which of the two can be zero under certain conditions : average speed of a moving body or average velocity of a moving body ?
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.
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(1) the acceleration,
(2) the average velocity, and
(3) the distance travelled in this time.
Give one example of following motion :
Variable acceleration
State how the velocity-time graph can be used to find
The acceleration of a body
The velocity-time graph of a body in motion is a straight line inclined to the time axis. The correct statement is ___________
For a uniformly retarded motion, the velocity-time graph is _____________
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(i) v = u + at
(ii) `"S = ut" + 1/2 "at"^2`
(iii) v2 = u2 + 2aS
where the symbols have their usual meanings.
A stone thrown vertically upwards takes 3 s to attain maximum height. Calculate
- initial velocity of the stone
- maximum height attained by the stone. (Take g = 9.8 ms−2)
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