Constant Acceleration

A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?

• 24 m/s²

• 18 m/s²

• 16 m/s²

• 16 m/s

Tags

NGSS.HS-PS2-1

A golf ball accelerates off a tee at 15m/s², changing its velocity from 0m/s to 50 m/s down the fairway. How long did it take the golf ball to accelerate?

• 750 seconds

• 35 seconds

• 0.3 seconds

• 3.3 seconds

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A box sliding down an inclined plane attains a velocity of 27 m/s in 3 seconds from rest.  Find the acceleration.

• 30 m/s

• 24 m/s²

• 9 m/s²

• 81 km/hr

Tags

NGSS.HS-PS2-1

What happens to the velocity of a ball as it is dropped off a cliff? 

• It decreases at a uniform rate 

• It increases at a uniform rate 

• It is constant 

• It increases at a non-uniform rate

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A motorcycle rider increases his speed from 25 m/s to to 55 m/s in 10 seconds. What was its rate of acceleration?

• 11 m/s²

• 30 m/s²

• 10 m/s

• 3 m/s²

Tags

NGSS.MS-PS2-2

The standard acceleration due to gravity (or standard acceleration of free fall),is the nominal gravitational acceleration of an object in a vacuum near the surface of the Earth. It is defined by standard as:

• 9.8 m/s.

• 9.8 m.

• 9.8 m/s².

• 9.8 s.

A man drops his camera off of the top of the oil derrick tower at Six Flags. Which of the following kinematic equations would he use in order to calculate the speed the camera was travelling when it hit the ground?

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Juan is standing on the top observation deck of the Eiffel Tower in Paris at a height of 300 meters. He drops his cell phone. How fast will the phone be traveling when it hits the ground? Ignore the effect of air resistance.

• 9.8 m/s

• 76.68 m/s

• 149.76 m/s

• 46.99 m/s

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-1

If an object is in free fall for three seconds, how fast will it be falling?

• 9.8 m/s

• 19.6 m/s

• 29.4 m/s

• 39.2 m/s

Tags

NGSS.MS-PS2-4

A pumpkin is dropped from a 35 m building. What is its initial velocity (v_i)?

• 9.8 m/s²

• 35 m

• 0 m/s

• 9.8 m/s