Question

Identify the situation for which speed and average speed of the objects are equal.(i) Freely falling ball
(ii) Second or minute needle of a clock
(iii) Motion of a ball on inclined plane
(iv) Train going from Delhi to Mumbai
(v) When object moves with uniform speed

Answer 1

Answer:

(ii) Second or minute needle of a clock

(v) When object moves with uniform speed

Explanation:

speed and average speed of the objects are equal

if there is no acceleration/retardation.

means object moves with a  constant speed

Second or minute needle of a clock  has speed and average speed  equal

object moves with uniform speed has speed and average speed  equal

if an object is traveling in such a way that it covers the same distance for each interval of time it is traveling, then it is said to be traveling with uniform speed.

Freely falling ball has acceleration due to gravity

so  speed and average speed  are not equal

Motion of a ball on inclined plane

speed and average speed  are not equal

Train going from Delhi to Mumbai

speed and average speed  are not equal

as train will start from rest then increase speed then stops at stations

Answer 2

Answer:

Answer:

(ii) Second or minute needle of a clock