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5. If an object has an acceleration of 0 m/s2, then one can be sure that the object is not ____.

a. moving

b. changing position

c. changing velocity


6. If car A passes car B, then car A must be ____.

a. accelerating.

b. accelerating at a greater rate than car B.

c. moving faster than car B and accelerating more than car B.

d. moving faster than car B, but not necessarily accelerating.

7. Which one of the following is NOT consistent with a car which is accelerating?

a. A car is moving with an increasing speed.

b. A car is moving with a decreasing speed.

c. A car is moving at a high speed.

d. A car is changing direction.

8. A fullback is running down the football field in a straight line. He starts at the 0-yard line at 0 seconds. At 1 second, he is on the 10-yard line; at 2 seconds, he is on the 20-yard line; at 3 seconds, he is on the 30-yard line; and at 4 seconds, he is on the 40-yard line. This is evidence that

a. he is accelerating

b. he is covering a greater distance in each consecutive second.

c. he is moving with a constant speed (on average).

Respuesta :

Answer: c

Explanation: for #5 it can still be moving, just at a constant speed; therefore, it will be c.

If an object has an acceleration of 0 m/s2, then one can be sure that the object is not changing velocity.

If car A passes car B, then car A must be moving faster than car B, but not necessarily accelerating.

The not consistent with a car that is accelerating is a car is moving at a high speed.

A fullback is running down the football field in a straight line. He starts at the 0-yard line at 0 seconds. At 1 second, he is on the 10-yard line; at 2 seconds, he is on the 20-yard line; at 3 seconds, he is on the 30-yard line; and at 4 seconds, he is on the 40-yard line. This is evidence that he is moving with a constant speed (on average).

What is Acceleration?

  • Acceleration is the rate of change of the velocity of an object with respect to time.
  • Accelerations are vector quantities (in that they have magnitude and direction).
  • Speed is the distance covered in a unit of time while acceleration is the rate of change in speed.
  • The unit of speed in the metric system is meters per second (m/s) while that of acceleration is meters per second squared (m/s2).
  • Speed is a scalar quantity while acceleration is a vector quantity.

To learn more about acceleration and speed, refer to: https://brainly.com/question/25086037

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