Determine whether the following statements are true or false and give an explanation or counter example. a. If the acceleration

Question

3 years ago

15

Determine whether the following statements are true or false and give an explanation or counter example. a. If the acceleration

of an object remains constant, then its velocity is constant. b. If the acceleration of an object moving along a line is always 0, then its velocity is constant. c. It is impossible for the instantaneous velocity at all times atb to equal the average velocity over the interval atb. d. A moving object can have negative acceleration and increasing speed.\

Physics

1 answer:

stiks02 [169] · Answer 1 · 2022-04-09T10:47:30+03:00

Answer:

A.) False

B.) True

C.) True

D.) False

Explanation:

a. If the acceleration of an object remains constant, then its velocity is constant. False because if velocity is constant, acceleration will be equal to zero.

b. If the acceleration of an object moving along a line is always 0, then its velocity is constant. Yes. According to definition of acceleration, saying it is the rate of change of velocity. So if velocity is not changing, acceleration = 0

c. It is impossible for the instantaneous velocity at all times at b to equal the average velocity over the interval at b. Yes. Because of constant velocity

d. A moving object can have negative acceleration and increasing speed. False. Because when an object is coming to rest velocity is always reducing.