11th grade physics
posted by jess .
A car slows down from +32 m/s to +8 m/s in 4s. Calculate the acceleration .

a = change in velocity / change in time
so..
a = 8  32 / 4
a = 6m/s^2 
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?

Friction force acting on the box if a horizontal force is applied with a magnitude of 0 N

What is the term used to describe a force that equals the sum of two or more forces?

a soccer ball is kicked with a velocity of 8m/s at angle of 23°. what is the ball's acceleration in the vertical directions as it flies through the air

6m/s^2
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