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

Scooter is decelerating in the region 8 to C.
a= (v - u)/t = (0 - 20)/20 = -1 m-2 .
APPEARS IN
RELATED QUESTIONS
An object of mass 16 kg is moving with an acceleration of 3 m/s2. Calculate the applied force. If the same force is applied to an object of mass 24 kg, how much will be the acceleration?
A train starts from rest and accelerates uniformly at a rate of 2 m s−2 for 10 s. It then maintains a constant speed for 200 s. The brakes are then applied and the train is uniformly retarded and comes to rest in 50 s. Find
- The maximum velocity reached,
- The retardation in the last 50 s,
- The total distance travelled,
- The average velocity of the train.
If a body is moving with a constant velocity its acceleration is ______.
When is the acceleration due to gravity positive?
Give an example of an accelerated body, moving with a uniform speed.
From the diagram given below, calculate deceleration.

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:
Distance travelled
What do you mean by constant acceleration?
A car starts from rest and it is travelling with a velocity of 20 m/s in 10 s. What is its acceleration?
State whether true or false. If false, correct the statement.
Acceleration can get negative value also.
