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प्रश्न
From the given v-t graph it can be inferred that an object is
पर्याय
in uniform motion
at rest
in non - uniform motion
moving with uniform accelerations
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उत्तर
moving with uniform accelerations
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संबंधित प्रश्न
Give a scientific reason.
When an object falls freely to the ground, its acceleration is uniform.
A train starts from rest and accelerates uniformly at a rate of 2 m s−2 for 10 s. It then maintains a constant speed for 200 s. The brakes are then applied and the train is uniformly retarded and comes to rest in 50 s. Find
- The maximum velocity reached,
- The retardation in the last 50 s,
- The total distance travelled,
- The average velocity of the train.
A car travels with uniform velocity of 25 m s-1 for 5 s. The brakes are then applied and the car is uniformly retarded and comes to rest in further 10 s. Find:
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- Retardation and
- The distance travelled by car after applying the brakes.
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Interpret the following graph:
Sketch the shape of the velocity-time graph for a body moving with:
Uniform acceleration.
A car accelerates uniformly from a velocity of 18 km/h to 36 km/h in 15 min. What is its acceleration?
A car is moving with a speed of 50 km/h. One second later, its speed is 55 km/h. What is its acceleration?
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Work out: Deceleration
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.
The rate of change of velocity is ______.
Negative acceleration is called ______.
If the velocity of a body does not change, then its acceleration is ______.
The acceleration of the body that moves with a uniform velocity will be ______.
When an object undergoes acceleration ______.
