Advertisements
Advertisements
Question
A car accelerates to a velocity of 30 m/s in 10 s and then decelerates for 20 s so that it stops. Draw a velocity-time graph to represent the motion and find:
The Deceleration.
Advertisements
Solution
Deceleration a = ( v - u )/t = ( o - 30 )/ 20 = -1.5 ms-2
APPEARS IN
RELATED QUESTIONS
Define acceleration. State its unit.
What is meant by the term retardation? Name its S.I. unit.
State the type of motion represented by the following sketches in Figures.
Give an example of each type of motion.
Draw a graph for acceleration against time for a uniformly accelerated motion. How can it be used to find the change in speed in a certain interval of time?
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 ?
What do you mean by constant acceleration?
The slope of a velocity-time graph gives ______.
An object can be moving with uniform speed but with variable acceleration.
It is possible to have objects moving with uniform speed but variable acceleration.
