Advertisements
Advertisements
Question
State its value in C.G.S. as well as in S.I. system.
Advertisements
Solution
In S.I. system, g = 9.8 ms−2; In C.GS. system, g = 980 cms−2
RELATED QUESTIONS
Figure given below shows a velocity-time graph for a car starting from rest. The graph has three parts AB, BC and CD.

(a) Is the magnitude of acceleration higher or lower than that of retardation ? Give a reason .
(b) Compare the magnitude of acceleration and retardation .
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.
Draw velocity – time graph for the following situation:
When a body is moving with variable velocity, but uniform retardation.
From the diagram given below, calculate deceleration.

A cyclist driving at 5 ms−1, picks a velocity of 10 ms−1, over a distance of 50 m. Calculate
- acceleration
- time in which the cyclist picks up above velocity.
A cyclist driving at 36 kmh−1 stops his motion in 2 s, by the application of brakes. Calculate
- retardation
- distance covered during the application of brakes.
From the given v-t graph it can be inferred that an object is

What do you mean by constant acceleration?
State whether true or false. If false, correct the statement.
Acceleration can get negative value also.
An object can be moving with uniform speed but with variable acceleration.
