Advertisements
Advertisements
प्रश्न
The graph shows how the velocity of a scooter varies with time in 50 s.
Work out: Acceleration.
Advertisements
उत्तर

Scooter is accelerating in the region O to A and acceleration is given by
a = (v - u)/t = (20 - 0)/10 = 2 m-2.
APPEARS IN
संबंधित प्रश्न
A space craft flying in a straight course with velocity of 75 km s-1 fires its rocket motors for 6.0 s. At the end of this time its speed is 120 km s-1 in the same direction.
Find
(i) The space craft's average acceleration while the motors were firing
(ii) The distance travelled by the space craft in the first 10 s after the rocket motors were started, the motors being in action for only 6 s.
From the velocity – time graph given below, calculate deceleration in region BC.

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.
The distance covered by a body is directly proportional to the square of the time elapsed. What can you say about its acceleration?
State if the following situation is possible:
A body moving with constant acceleration but with Zero velocity.
State if the following situation is possible:
A body moving with a constant velocity in an accelerated motion.
Interpret the following graph:
The graph shows how the velocity of a scooter varies with time in 50 s.
Work out: Deceleration
A bus accelerating with 4ms-2 changes its speed from 60ms_1 to a certain value in 5s. The final speed is ______.
Assertion: A negative acceleration of a body can be associated with speeding up of the body.
Reason: Increase in the speed of a moving body is independent of its direction of motion.
