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प्रश्न
When is the acceleration due to gravity positive?
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उत्तर
If a body falls towards the earth, then value of acceleration due to gravity is positive.
संबंधित प्रश्न
Figure shows the velocity-time graphs for two cars A and B moving in the same direction. Which car has greater acceleration? Give reasons to your answer.
Draw velocity – time graph for the following situation:
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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.
From the diagram given below, calculate acceleration.
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- retardation
- distance covered during the application of brakes.
Convert the following acceleration:
1/36 m/s2 into km/h2
A car is moving with a speed of 50 km/h. One second later, its speed is 55 km/h. What is its acceleration?
Negative acceleration is called ______.
If a moving body comes to rest, then its acceleration is ______.
