Centripetal motion and Gravity

A pilot experiences centripetal acceleration of 2g's while maneuvering a loop at a speed of 400 m/s.  What is the radius of the loop?

• 203 m
• 8163 m
• 80,003 m
• 23 m

Tags

NGSS.HS-PS2-1

What happens to the centripetal force exerted on an object if you triple the velocity?

• it increases to 3X
• it decreases to 6X
• it increases to 6X
• it increases to 9X

Calculate the velocity of an object moved around a circle with a radius of 1.65 m and an acceleration of 3.5 m/s².

• 2.4 m/s
• 3.6 m/s
• 3.9 m/s
• 4.2 m/s

Tags

NGSS.HS-PS2-1

Calculate the centripetal force required to make a 5 kg ball move 4 m/s in a circle with a radius of 2 m.

• 10 N
• 20 N
• 30 N
• 40  N

Tags

NGSS.HS-PS2-1

Centripetal force is...

• the resultant force acting on a body moving at constant speed in a circle 
• the outwards force acting on a body moving at constant speed in a circle 

Centripetal acceleration acts towards the ___________ of the circular motion

• center

• circumference

Which represents the acceleration of the ball?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1

Which of the following depict the speed of the bowling ball if it was going counter clockwise in a circle?

• A

• B

• C

• D

Tags

NGSS.HS-PS2-1

Calculate the mass of an object if it took 20 N to rotate it in a circle with a radius of 2 meters with a velocity of 4 m/s

• 4.1 kg
• 3.6 kg
• 2.5 kg
• 1.8 kg

Tags

NGSS.HS-PS2-1

A test car moves at a constant speed around a circular track.  If the car is 48.2 m from the track's center and has a centripetal acceleration of 8.05 m/s², what is the car's tangential speed?

• 19.7 m/s
• 5.99 m/s
• 0.17 m/s
• 388.01 m/s

Tags

NGSS.HS-PS2-1