Advertisements
Advertisements
प्रश्न
State how the velocity-time graph can be used to find
The acceleration of a body
Advertisements
उत्तर
The slope of the velocity-time graph gives the value of acceleration.
APPEARS IN
संबंधित प्रश्न
Name the physical quantity whose SI unit is :
(a) m/s (b) m/s2
What conclusion can you draw about the velocity of a body from the displacement-time graph shown below :
Explain the meaning of the following equation of motion :v = u + at, where symbols have their usual meanings.
A car acquire a velocity of 72 km per hour in 10 second starting from rest. Find
(1) the acceleration,
(2) the average velocity, and
(3) the distance travelled in this time.
The slope of a speed-time graph gives:
A body starts from rest and acquires a velocity 10 m s-1 in 2 s. Find the acceleration.
Write three equations of uniformly accelerated motion relating the initial velocity (u), final velocity (v), time (t), acceleration (a) and displacement (S).
Can you suggest a real-life example about the motion of a body from the following velocity – time graph?
A stone thrown vertically upwards takes 3 s to attain maximum height. Calculate
- initial velocity of the stone
- maximum height attained by the stone. (Take g = 9.8 ms−2)
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?
