Question

Two horses begin at rest. After a few seconds, horse A is traveling with a velocity of 10m/s west, while horse B is traveling with a velocity of 13m/s west. Which horse had greater acceleration?

A. Horse A because its change in velocity was greater than Horse B in the same time.
B. Horse B because its change in velocity was greater than Horse A in the same time.
C. Horse B because its change in velocity was the same as Horse A's, but it took less time.
D. Both horses had the same acceleration.

Answer 1

The answer is B........

Answer 2

Given that,

Initial velocity of both horses are zero. (at rest)

Final velocity of Horse A= 10m/s

final velocity of Horse B= 13 m/s

Acceleration for horse A will be,

a = ΔV/t= 10/t

Acceleration for horse B will be,

a= ΔV/t= 13/t

Therefore, Horse B have greater acceleration because its change in velocity was greater than Horse A in the same time.