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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
A racing car is moving with a velocity of 50 m/s. On
applying brakes, it is uniformly retarded and comes to rest in 20 seconds. Calculate its acceleration.
What does a positive acceleration mean?
A car traveling at 60 km/h, stops on applying brakes in 10 seconds. What is its acceleration?
State if the following situation is possible:
A body moving with constant acceleration but with Zero velocity.
The graph shows how the velocity of a scooter varies with time in 50 s.
Work out: Deceleration
Exercise Problem.
A racing car has a uniform acceleration of 4 ms–2. What distance it covers in 10 s after the start?
When an object undergoes acceleration ______.
A quantity has a value of 16ms-2. It is the ______.
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.
