Projectile Motion 2

At what point is v_y= 0 m/s?

• A

• B

• C

• D

• None of these points

At what point is v_x= 0 m/s?

• A

• B

• C

• D

• None of these points

Which vector pair (arrow pair) correctly represents the acceleration and velocity at point P?

• 
• 
• 
• 

Tags

NGSS.HS-PS2-1

Suppose Lemming A runs off the edge of the cliff at 2 m/s and Lemming B runs off the edge at 1 m/s. Which will hit the ground farther from the base of the cliff?

• A

• B

• Both at the same distance

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

In the absence of air resistance, the angle at which a thrown ball will go the farthest is?

• 90°

• 30°

• 60°

• 45°

If you throw a baseball straight up, what is its acceleration at the highest point?

• 9.8 m/s²
• 9.8 m/s
• 0 m/s²
• 0 m/s

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

The more mass an object has, the faster it will fall.

• True
• False

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

What is the horizontal acceleration of a projectile?

• 0 m/s²
• 9.8 m/s²

Tags

NGSS.HS-PS2-1

An object is projected horizontally from a cliff.  The time it takes to hit the ground is

• more than if it was just dropped
• less than if it was just dropped
• the same amount of time than if it was just dropped
• impossible to determine

Tags

NGSS.MS-PS2-4

A projectile is launched at a speed of 9.0 x 10² ms^-1 and angle of elevation of 30°. The horizontal component of the launch velocity is:

• 4.5 x 10² ms^-1

• 5.2 x 10² ms^-1

• 7.8 x 10² ms^-1

• 9.0 x 10² ms^-1