Acceleration Calculations

Which of these objects is NOT accelerating?

• A plane slowing down to land

• A rocket taking off into space

• A hiker moving at the same speed for hours

• A rollerblader heading downhill

Change in speed = 14 m/s; time taken = 2 seconds. The acceleration is....

• 6 m/s²

• 7 m/s

• 7m/s²

• 6 m/s

Tags

NGSS.MS-PS2-2

A cyclist in the Tour de France accelerates down a hill from 22 m/s to a speed of 37 m/s. This acceleration takes him 2 seconds. The acceleration is...?

• 7.5 m/s²

• 11 m/s²

• 18.5 m/s²

• 44 m/s²

Tags

NGSS.HS-PS2-1

If a Ferrari accelerates at a rate of 50 m/s² for 3 seconds, what will its change in velocity be?

• 50 m/s

• 53 m/s

• 16.67 m/s

• 150 m/s

Tags

NGSS.HS-PS2-1

To calculate the time that a change in speed needed to take happen for a certain acceleration rate we use the formula.....

A horse accelerates from 5 m/s to 10 m/s with acceleration of 2 m/s². For how many seconds did it accelerate for?

• 20 s

• 10 s

• 5 s

• 2.5 s

Tags

NGSS.MS-PS2-2

A fighter jet lands on the flight deck of an aircraft carrier. The jet must reduce its speed from about 42.5 m/s to exactly 0 m/s in 2.0 s. What is the jet’s acceleration?

• 21.3 m/s²

• -21.3 m/s²

• 85 m/s²

• -85 m/s²

Tags

NGSS.MS-PS2-2

A bicyclist accelerates at 0.89 m/s² during a 5.0 s interval. What is the change in the speed of the bicyclist and the bicycle?

• 0.18 m/s

• 4.5 m/s

• 5.6 m/s

Tags

NGSS.MS-PS2-2

A runner whose initial speed is 8 m/s increases her speed to 9 m/s in order to win a race. If the runner takes 5.0 s to complete this increase in speed, what is her acceleration?

• 0.2 m/s²

• -0.2 m/s²

• 5 m/s²

• -5 m/s²

Tags

NGSS.MS-PS2-2

A freight train begins braking as it approaches a train yard. The train’s acceleration while braking is –0.33 m/s² . What is the change in the train’s speed after 23 s?

• -10.4 m/s

• 10.4 m/s

• 7.6 m/s

• -7.6 m/s

Tags

NGSS.MS-PS2-2