Accelaration

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

A car accelerates from a standstill to 70 m/s in 10 seconds.  What is the acceleration?

• 0.7m/s²
• 7m/s²
• 14m/s²
• none of the above

Tags

NGSS.HS-PS2-1

A drag racer accelerated from 0 m/s to 200 m/s in 5 s.  What was the acceleration?

• 0 m/s
• 40 m/s²
• -40 m/s²
• 40 m/s

An automobile with a Vi of 4.30m/s accelerates at a rate of 3.00 m/s/s.  Find the Vf after 5.00 s.

• 19.3m/s
• -44.7m/s
• 15m/s 
• 0 m/s

A golf ball starts with a speed of 2 m/s and slows at a constant rate of 0.5 m/s², what is its velocity after 2 s?

• 0 m/s
• 0.5 m/s
• 1 m/s
• 1.5 m/s

Tags

NGSS.HS-PS2-1

Determine the motion of the car.

• at rest 
• moving at constant speed
• speeding up
• slowing down

Determine the motion of the car.

• at rest 
• constant velocity 
• speeding up
• slowing down

Which of the following is a unit for acceleration?

• km/s
• m/s²
• mi/hr
• ft

What is acceleration?

• How fast something is going

• The magnitude of a force

• Rate at which speed or direction changes

• Direction of a force

Acceleration: is the rate of change in ___________.

• speed
• distance
• velocity 
• displacement