Question

An object may have
(a) varying speed without having varying velocity
(b) varying velocity without having varying speed
(c) nonzero acceleration without having varying velocity
(d) nonzero acceleration without having varying speed.

Answer 1

Answer:

a) varying speed without varying velocity

Answer 2

An object may have

(b) varying velocity without having varying speed

(d) nonzero acceleration without having varying speed.

Explanation:

• Speed is a scalar variable and velocity is a vector variable.
• An object may have a stable speed, but the velocity changes because the velocity is a vector variable.
• Option B and D only indicates no acceleration and no variable speed. Examples B and D are the uniform circular motion.

Therefore, options B and D are correct