Question

Study the velocity-time graph of a body given below and answer the following

questions:

i. State the type of motion

represented by part BC.

ii. Identify the part of graph which
has zero acceleration. Give reason for your answer.​

Answer 1

Explanation:

1. bc represent steady motion i.e no change in velocity. acceleration is zero.

2. since bc is a straight line there is no change in velocity, therefore its acceleration is 0.

we know that accln = (dv/dt)

no change in velocity, dv = 0

therefore accln = 0

Answer 2

Explanation:

1.AB=accelerated motion

BC=uniform motion

CD=deccelerated motion

2.BC have 0 acceleration because slope or v-t graph always gives acceleration but here the slope is 0,so the acceleration is also zero.