Question #6417186Single Choice

Physics

Question

A rolling soccer ball decelerated from 22 m/s to 8 m/s in 7 sec. What is the acceleration?

Options

A

-2 m/s²

B

-0.5 m/s²

C

14 m/s²

D

7 m/s²

Answer & Analysis

Answer

A

Analysis

To find the acceleration, we can use the formula:

Where:

is the change in velocity

is the time taken

Initial velocity (u) = 22 m/s

Final velocity (v) = 8 m/s

Time (t) = 7 seconds

Calculate the change in velocity ():

Click "Show Answer" to reveal the answer and analysis

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