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प्रश्न
State how the velocity-time graph can be used to find
The acceleration of a body
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उत्तर
The slope of the velocity-time graph gives the value of acceleration.
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संबंधित प्रश्न
Fill in the following blank with a suitable word:
Acceleration is the rate of change of ______ It is measured in ______
Define velocity. What is the SI unit of velocity ?
Describe the motion of a body which is accelerating at a constant rate of 10 m s–2. If the body starts from rest, how much distance will it cover in 2 s ?
A motorcycle moving with a speed of 5 m/s is subjected to an acceleration of 0.2 m/s2. Calculate the speed of the motorcycle after 10 seconds, and the distance travelled in this time.
The slope of a speed-time graph gives:
A car starting from rest acquires a velocity 180m s-1 in 0.05 h. Find the acceleration.
How can you find the following?
Acceleration from velocity – time graph.
Can you suggest a real-life example about the motion of a body from the following velocity – time graph?
An object starting from rest travels 20 m in the first 2 s and 160 m in the next 4 s. What will be the velocity after 7 s from the start?
An electron moving with a velocity of 5 × 104 ms−1 enters into a uniform electric field and acquires a uniform acceleration of 104 ms–2 in the direction of its initial motion.
(i) Calculate the time in which the electron would acquire a velocity double of its initial velocity.
(ii) How much distance the electron would cover at this time?
