Question

1. Classify the given examples as uniform motion or non uniform motion with explanation.
a) Motion of flooded river water
b) Revolution of moon around the earth
c) A bicycle coming downhill freely under the influence of gravity along smooth ramp.
d) Motion of a football kicked obliquely in air.​

Answer 1

Answer:

a. non uniform

b. uniform motion

c. uniform motion

Answer 2

answer

uniform motion - revolution of moon around the earth

rest are non uniform according to me

Explanation:

moon always moves with a fixed speed around the earth but in first option river water flows with different speed at different places

in option c, bicycle moves with an acceleration due to gravity so it's speed increases continuously

in option D, when football is in air it's speed decreases due to air resistance

so all other cases undergo non uniform motion except the case in option b