Posted by **jess** on Monday, November 29, 2010 at 9:30pm.

A car slows down from +32 m/s to +8 m/s in 4s. Calculate the acceleration .

- 11th grade physics -
**cel**, Monday, November 29, 2010 at 9:32pm
a = change in velocity / change in time

so..

a = 8 - 32 / 4

a = -6m/s^2

- 11th grade physics -
**jess**, Monday, November 29, 2010 at 9:45pm
Carl puts the pedal to the metal and increases her speed as follows: 0 mi/hr at 0 seconds; 10 mi/hr at 1 second; 20 mi/hr at 2 seconds; 30 mi/hr at 3 seconds; and 40 mi/hr at 4 seconds. What is the acceleration of Car;'s car?

- 11th grade physics -
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Friction force acting on the box if a horizontal force is applied with a magnitude of 0 N

- 11th grade physics -
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- 11th grade physics -
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