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

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
RELATED QUESTIONS
Distinguish between acceleration and retardation.
Figure given below shows a velocity-time graph for a car starting from rest. The graph has three parts AB, BC and CD.

Which part of graph shows motion with uniform
(a) velocity (b) acceleration (c) retardation ?
A bullet initially moving with a velocity 20 m/s strikes a target and comes to rest after penetrating a distance 10 cm into the target. Calculate the retardation caused by the target.
State its value in C.G.S. as well as in S.I. system.
What does a positive acceleration mean?
Convert the following acceleration:
1/36 m/s2 into km/h2
Figure represents graphically the velocity of a car moving along a straight road over a period of 100 hours.
Calculate the acceleration along AB and the retardation along BC.
The Unit of acceleration is ______.
A car is being driven at a speed of 20ms-1 when brakes are applied to bring it to rest in 5 s. The deceleration produced in this case will be ______.
