Projectile Motion

Front

At what point is v_y= 0 m/s? Options: A, B, C, D, None of these points

Back

B

Front

At what point is v_x= 0 m/s? Options: A, B, C, D, None of these points

Back

None of these points

Front

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

Back

Front

Who do you agree with? Options: Anita: “A projectile’s v_x changes because of gravity, and its v_y remains constant.”, Barry: “Both v_x and v_y are constant.”, Chris: “A projectile has no acceleration in the vertical dimension but it does accelerate horizontally.”, Dave: “A projectile has vertical acceleration and a constant horizontal velocity”

Back

Dave: “A projectile has vertical acceleration and a constant horizontal velocity”

Front

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

Back

Both at the same time

Front

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

Back

Lemming A

Front

At the very top of a ball’s path, what is its velocity in the horizontal direction?

Back

v_x

Front

At the very top of a ball’s path, what is its velocity in the vertical direction?

Back

Zero

Front

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

Back

45°

Front

A package is dropped from an airplane, where will the package hit the ground? Options: A, B, C

Back

B