Advertisements
Advertisements
Question
Define acceleration.
Advertisements
Solution
Acceleration of a body is rate of change of its velocity with respect to the time.
APPEARS IN
RELATED QUESTIONS
Give a scientific reason.
When an object falls freely to the ground, its acceleration is uniform.
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?
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.
A body falls towards the earth. Does it have positive or negative acceleration?
A car traveling at 60 km/h, stops on applying brakes in 10 seconds. What is its acceleration?
The initial velocity of a car is 10 ms-1. It moves with an acceleration of 2 ms-2. What will be its speed after 10 seconds?
Convert the following acceleration:
1/36 m/s2 into km/h2
From the given v-t graph it can be inferred that an object is

If the velocity of a body does not change, then its acceleration is ______.
When an object undergoes acceleration ______.
