Question

A : A car colliding with another car
B : A horse running in a race
C : Earth moving round the sun is an uniform motion
D : Rain drops fall at uniform speed as buoyant forces balances 'g'
Which of the following is/are non-uniform motion?

• A. Only A
• B. Only B
• C. Only A and B
• D. All A, B, C and D

Answer 1

The correct option is C Only A and B

(A) : After colliding, the car changes its velocity, thus the motion of car is a non-uniform motion.

(B) : A horse running in a race increases its speed, thus motion of horse is a non-uniform motion.

(C) : Earth moves around the sun with a constant speed, thus motion of earth is an uniform motion.

(D) : Rain drops at a constant speed, thus motion of rain drops is an uniform motion.

Thus option C is correct.