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प्रश्न
Convert the following acceleration:
1/36 m/s2 into km/h2
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उत्तर
1/36 m/s2 = (1 X3600 X 3600)/(36 X1000) = 3600 kmh-2.
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संबंधित प्रश्न
Give an example of an accelerated body, moving with a uniform speed.
From the diagram given below, calculate acceleration.
A motorbike, initially at rest, picks up a velocity of 72 kmh−1 over a distance of 40 m. Calculate
- acceleration
- time in which it picks up above velocity.
A cyclist driving at 5 ms−1, picks a velocity of 10 ms−1, over a distance of 50 m. Calculate
- acceleration
- time in which the cyclist picks up above velocity.
A racing car, initially at rest, picks up a velocity of 180 kmh−1 in 4.5 s. Calculate
- acceleration
- distance covered by the car.
Interpret the following graph:
A body has an acceleration of -3.5 ms-2. What is its retardation?
A car is moving with a speed of 50 km/h. One second later, its speed is 55 km/h. What is its acceleration?
Assertion: The accelerated motion of an object may be due to change in magnitude of velocity or direction or both of them.
Reason: Acceleration can be produced only by change in magnitude of the velocity. It does not depend the direction.
Exercise Problem.
A racing car has a uniform acceleration of 4 ms–2. What distance it covers in 10 s after the start?
