Physics Unit 2 Review

What are the units of displacement/distance travelled ( $\Delta X$  )

• s

• m

• m/s

• m/s^2

What are the units of final velocity?

• s

• m

• m/s

• m/s^2

What are the units of acceleration

• s

• m

• m/s

• m/s^2

What are the units of time?

• s

• m

• m/s

• m/s^2

What are the units of initial velocity?

• s

• m

• m/s

• m/s^2

A car starts from rest and reaches a velocity of 30 m/s after driving a distance of 20 m. What is the initial velocity of the car?

• 0 m/s

• 30 m/s

• 20 m

• Need acceleration to find

A car starts from rest and reaches a velocity of 30 m/s after driving a distance of 20 m. What is the final velocity of the car?

• 0 m/s

• 30 m/s

• 20 m

• Need acceleration to find

A car starts from rest and reaches a velocity of 30 m/s after driving a distance of 20 m. What is the time the car has been in motion?

• 0 m/s

• 30 m/s

• 20 m

• Not provided here

A car starts from rest and reaches a velocity of 30 m/s after driving a distance of 20 m. If you were going to find the acceleration of the car, which equation would you use?

• $\Delta X\ =v_ot\ +\ \frac{1}{2}at^{2^{ }}$

• $v_f^2=\ v_o^2\ +2a\left(\Delta X\right)$

• $v_f=v_{o_{ }}+at$

• Not provided here

A car starts from rest and reaches a velocity of 30 m/s after driving a distance of 20 m. Find the acceleration.

• 0.75

• 22.5

• 45

• 1.5