Question

Write difference between the following.
(a) Distance and Displacement.
(b) Speed and Velocity.
(c) Positive and Negative Acceleration.
(d) Uniform and Non Uniform Motion.​

Answer 1

Answer:

a. distance is the length travelled by the particular object... displacement is the shortest line between initial point and final point...

b. velocity has direction as well as magnitude... speed contains only magnitude...

d. uniform acceleration is equal distance in equal time interval

Answer 2

Explanation:

c.positve acceleration: when the velocity of a body increases with time, its acceleration is positive.

example: When a ball, initially at rest on the ground, is hit with a bat, the velocity of the ball increases in the. During this time, the acceleration of the ball is positive.

Negative acceleration: when the velocity of a body decreases with time, its acceleration is negative.

example: When brakes are applied to a bicycle in the motion on a horizontal road, its velocity decreases. In this case, acceleration is negative.

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