Question

question 7 (1 point) if the object went from 0 kmph to 20 kmph in 5 seconds is there acceleration? a yes, because there was a change in velocity from 0 to 20kmph b no because it moved straight on a track and the plane question 8 (1 point) in order to have acceleration you must a have high velocity b have a change in speed or velocity c have slow velocity question 9 (1 point) the reason why there is acceleration in this example is

Explanation:

Step1: Recall acceleration definition

Acceleration is the rate of change of velocity. If velocity changes, there is acceleration.

Step2: Analyze Question 7

The object's velocity changed from 0 kmph to 20 kmph. So, there is acceleration.

Step3: Analyze Question 8

Acceleration occurs when there is a change in speed or velocity, not just high or low velocity.

Step4: Analyze Question 9

The reason for acceleration in the given example is the change in velocity from 0 to 20 kmph.

Answer:

Question 7: A. yes, because there was a change in velocity from 0 to 20kmph
Question 8: B. have a change in speed or velocity
Question 9: There was a change in velocity from 0 to 20 kmph.