Question

Study the velocity-time graph of a car given below and answer the following questions: i. What type of motion is represented by OA? ii. Find the acceleration from B to C. iii. Calculate the distance covered by the body from A to B.

Answer 1

Answer :

( 1 ) OA represents uniform acceleration

( 2 ) Given,

Initial velocity = 3m/s

Final velocity = 0m/s

Time = 20secs

Acceleration = v - u / t

0 - 3 / 20 = - 3 /20 m/second square

( 3 ) Distance covered is area under the graph

So,

Length = 3

Breadth = 60 - 20 =40

Area = length * breadth

3 * 40 = 120m

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