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
A body falls freely from a certain height. Show graphically the relation between the distance fallen and square of time. How will you determine g from this graph?
A ball is rolling from A to D on a flat and smooth surface. Its speed is 2 cm/s. On reaching B, it was pushed continuously up to C. On reaching D from C, its speed had become 4 cm/s. It took 2 seconds for it to go from B to C. What is the acceleration of the ball as it goes from B to C?

Draw velocity – time graph for the following situation:
When a body is moving with variable velocity and variable acceleration.
From the diagram given below, calculate deceleration.

What is the SI unit of acceleration?
State if the following situation is possible:
A body moving with a constant velocity in an accelerated motion.
Correct your friend who says that acceleration gives the idea of how fast the position changes.
Negative acceleration is called ______.
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.
