2D Motion

Which best describes the horizontal motion of a projectile, assuming no air resistance?

• Acceleration of -10 m/s²

• Acceleration of -5 m/s²

• An increasing acceleration every second

• Constant velocity

Which best describes the vertical motion of a projectile, assuming no air resistance?

• Acceleration of -10 m/s²

• Accelerations of -5 m/s²

• An increasing acceleration every second

• Constant velocity

Tags

NGSS.HS-PS2-1

A projectile is launched from the top of a 4.5 m tower and lands 15 m away from the base of the tower. Find the horizontal velocity of the projectile.

• 11.1 m/s

• 15.8 m/s

• 16.3 m/s

• 32.7 m/s

What is true about the vertical velocity of a projectile launched horizontally?

• It is initially at its maximum value.

• It increases due to gravity as it falls.

• It remains constant throughout its trajectory.

• It decreases as it falls due to gravity.

Which of the following vectors depicts the velocity of the bowling ball?

• A

• B

• C

• D

Tags

NGSS.HS-PS2-1

As a ball rolls across a table it has a constant horizontal velocity. When the ball rolls off the table the horizontal velocity...

• Stays the same

• Accelerates at -9.8 m/s²

• Accelerates at an unknown value

• Becomes zero

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

A marble traveling at 3 m/s rolls off the edge of a 1 m high table. What is its initial vertical speed?

• -10 m/s

• 0 m/s

• -3 m/s

• -15 m/s

At the instant a ball is thrown horizontally with a large force, an identical ball is dropped from the same height. Which ball hits the ground first?

• Neither- they hit at the same time

• the horizontally thrown ball

• the dropped ball

• None of these

Tags

NGSS.MS-PS2-4

As a projectile moves through the air, the motion on y axis is best described as ____

• free fall acceleration

• uniform motion

• varying speeds

• constant velocity

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

Once a projectile is launched, what is the only force that affects its motion?

• mass

• friction

• inertia

• gravity