Choose the Equation

A race car starting from rest accelerates uniformly at 4.9 m/s² . What is the car’s speed after it has traveled 200 meters?

What information is given? Check all that apply

• time (t)

• distance (d)

• initial velocity (v_i)

• final velocity (v_f)

• acceleration (a)

A race car starting from rest accelerates uniformly at 4.9 m/s^2 . What is the car’s speed after it has traveled 200 meters?

Which equation would you use?

•  $v_f=v_i+at$  

•  $d=v_it+\frac{1}{2}at^2$  

•  $v_f^2=v_i^2+2ad$  

•  $v=\frac{d}{t}$  

A car is moving at 10m/s and accelerates at 3m/s^2 for 2s. What is final velocity?

Which equation would you use?

• $v_f=v_i+at$

• $d=v_it+\frac{1}{2}at^2$

• $v_f^2=v_i^2+2ad$

• $v=\frac{d}{t}$

A 747 jet, traveling at a velocity of 70 meters per second north, touches down on a runway. The jet slows to rest at the rate of 2.0 meters per second^2 . What distance does the jet travel on the runway?

Which equation would you use?

• $v_f=v_i+at$

• $d=v_it+\frac{1}{2}at^2$

• $v_f^2=v_i^2+2ad$

• $v=\frac{d}{t}$

A car initially traveling at a speed of 16 meters per second accelerates uniformly to a speed of 20 meters per second over a distance of 36 meters. What is the magnitude of the car’s acceleration?

What information is given? Check all that apply.

• acceleration (a)

• distance (d)

• time (t)

• initial velocity (v_i)

• final velocity (v_f)

A car initially traveling at a speed of 16 meters per second accelerates uniformly to a speed of 20 meters per second over a distance of 36 meters. What is the magnitude of the car’s acceleration?

Which equation would you use?

• $v_f=v_i+at$

• $d=v_it+\frac{1}{2}at^2$

• $v_f^2=v_i^2+2ad$

• $v=\frac{d}{t}$

A car initially traveling at a speed of 16 meters per second accelerates uniformly to a speed of 20 meters per second over a distance of 36 meters. What is the magnitude of the car’s acceleration?

• 0.11 m/s²

• 2.0 m/s²

• 0.22 m/s²

• 9.0 m/s²

A child riding a bicycle at 20 meters per second accelerates at -2.0 meters per second² for 4.0 seconds. What is the child’s speed at the end of this 4.0-second interval?

Based on the given information, should our final speed be faster or slower than the initial?

• Faster

• Slower

A child riding a bicycle at 20 meters per second accelerates at -2.0 meters per second² for 4.0 seconds. What is the child’s speed at the end of this 4.0-second interval?

• 12 m/s

• 28 m/s

• 5.0 m/s

• 8.0 m/s

A car is moving with a constant speed of 25 meters per second. What total distance does the car travel in 3 minutes?

• 37.5 m

• 75 m

• 2250 m

• 4500 m