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प्रश्न
Fill in the following blank with suitable word :
Velocity is the rate of change of……………………… It is measured in.............. .
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उत्तर
Velocity is the rate of change of displacement, It is measured in m/s .
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संबंधित प्रश्न
A train travelling at 20 m s-1 accelerates at 0.5 m s-2 for 30 s. How far will it travel in this time ?
A body starting from rest travels with uniform acceleration. If it travels 100 m in 5 s, what is the value of acceleration ?
When a car driver travelling at a speed of 10 m/s applies brakes and brings the car to rest in 20 s, then retardation will be :
Give one example of following motion :
Variable acceleration
The figure shows the displacement - time graph for four bodies A, B C and D. In each case state what information do you get about the acceleration (zero, positive or negative).
For a uniformly retarded motion, the velocity-time graph is _____________
How can you find the following?
Acceleration from velocity – time graph.
Can you suggest a real-life example about the motion of a body from the following velocity – time graph?
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)
A body is thrown vertically upward with velocity u, the greatest height h to which it will rise is,
