2D Kinematics- Projectile Motion

If the total time to get to the highest point is 3.6 s, What's the air time of the projectile?

• 4 seconds

• 7.2 seconds

• 8.2 seconds

• 5 seconds

What's the maximum height of a projectile if its V₀=20m/s at an angle of 30°?

• 25.3 m

• 5.10 m

• 10.7 m

• 2.2 m

Tags

NGSS.HS-PS2-4

What is the horizontal acceleration of a projectile? (neglect air resistance)  

• 0 m/s²
• 9.8 m/s²

Tags

NGSS.HS-PS2-1

What is the vertical acceleration of a projectile? (neglect air resistance) 

• 0 m/s²
• 9.8 m/s² down
• 9.8 m/s² up

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

If a bullet is horizontally shot at the same moment another bullet is dropped from the same height, which will hit the ground first?(neglect air resistance) 

• Shot Bullet
• Dropped Bullet
• Hit at Same Time

If you shoot a gun and at the same time drop a bullet which will hit the ground first? Why?

• The bullet that is shot, because it is going faster
• The dropped bullet, because gravity pulls on it.
• At the same time, because the x and y components are independent of each other. 
• This cannot happen

Tags

NGSS.HS-PS2-4

A ball is thrown horizontally from the top of a building with an initial velocity of 13m/s.  At the same time, a second ball is dropped from the top of the same building.  Which of the following is the same for the two balls?

• Their final displacement
• Their paths as they fall
• Their initial horizontal velocities
• Their final vertical velocity as they reach the ground

A bullet is fired horizontally at a height of 1.3 meters at a velocity of 950 m/s. Assume no air resistance. How long until the bullet reaches the ground?

• 0.52 s
• 0.27 s
• 0.13 s
• 0.36 s

A bullet is fired horizontally at a height of 1.3 meters at a velocity of 950 m/s. Assume no air resistance. How far did the bullet travel horizontally when it hit the ground?

• 252.04 m
• 489.32 m
• 126.02 m
• 346.00 m

The golf ball below has reached the top of its trajectory in the time shown. What will the total hang time be when the ball hits the ground? Assume no air resistance or spin.

• 4.1s

• 6.2s

• 8.2s

• 9.3s