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प्रश्न
Define acceleration.
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उत्तर
Acceleration of a body is rate of change of its velocity with respect to the time.
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संबंधित प्रश्न
Give one example of the following motion:
Uniform retardation
State the type of motion represented by the following sketches in Figures.
Give an example of each type of motion.
Diagram is given below shows velocity – time graph of car P and Q, starting from the same place and in the same direction. Calculate the Acceleration of car Q between 2 s – 5 s.
A car accelerates to a velocity of 30 m/s in 10 s and then decelerates for 20 s so that it stops. Draw a velocity-time graph to represent the motion and find:
The Deceleration.
A bus can accelerate with an acceleration of 1 m/s2 . Find the minimum time for the bus to attain the speed of 100 km/s from 50 km /s.
m/s2 is the unit of ______.
A bus accelerating with 4ms-2 changes its speed from 60ms_1 to a certain value in 5s. The final speed is ______.
If a moving body comes to rest, then its acceleration is ______.
Acceleration is a scalar.
Assertion: Position-time graph of a stationary object is a straight line parallel to the time axis.
Reason: For a stationary object, the position does not change with time.
