revision

At what point is v_y= 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?

• 
• 
• 
• 

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 first?

• A

• B

• Both at the same time

What is the horizontal acceleration of a projectile?

A basketball that is thrown to the ring follows a path that is ______________.

• hyperbolic

• parabolic

• linear

• circular

What happens to the horizontal velocity of a projectile as it travels along the curved path?

• increases

• decreases

• stays the same

• none of these

What happens to the vertical velocity of a projectile as it goes up?

• increases

• decreases

• stays the same

• none of these

What happens to the vertical velocity of a projectile as it goes down?

• increases

• decreases

• stays the same

• none of these

What is the vertical acceleration of a projectile due to gravity?

• -9.0 m/s

• -9.8 m/s

• -9.8 m/s2

• -9.08 m/s2

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

• about 10 m/s²

• about 10 m/s

• 0 m/s²

• 0 m/s