Question

Question :—

Figure shows velocity time graph of a particle moving along a straight line.

(a) Is the motion uniform?

(b) Is the acceleration uniform?

(c ) Does the particle change its direction of motion?

(d) Find the distances covered from 0 to 4 s and 4 to 6 s.

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Answer 1

I think it would be the correct answer

Answer 2

EXPLANATION.

(1) = Is the motion uniform.

As we know that,

It is a velocity time graph.

As we can see that,

First motion is increases till 4 seconds then it suddenly decreases to 6 seconds.

So, motion is not uniform.

(2) = Is the acceleration uniform.

As we know that,

The velocity time graph give the acceleration.

From 0 to 4 seconds Acceleration is different.

From 4 to 6 seconds Acceleration is different.

So, Acceleration is not uniform.

(3) = Does the particle change its direction of motion.

As we know that,

Velocity increases from 0 to 4 seconds then decreases 4 to 6 seconds.

And it is remains positive and particle is moving in a positive direction.

So, The particle doesn't change its direction of motion.

(4) = Distances from 0 to 4 seconds.

Distance = 1/2 x 2 x 4 = 4m.

Distances from 4 to 6 seconds.

Distance = 1/2 x (6 - 4) x 2.

Distances = 1/2 x 2 x 2 = 2m.