Kinematics and Projectile Horizontal

How can you describe the motion on the horizontal axis if you ignore air resistance?

• acceleration due to gravity
• constant velocity
• varying acceleration
• motionless

Tags

NGSS.HS-PS2-1

What is the vertical acceleration of a projectile?

• 0 m/s²
• 9.8 m/s² down
• 4.9 m/s² down
• 12 m/s down

Tags

NGSS.HS-PS2-1

When a ball is projected horizontally, what is its initial vertical velocity?

• 10 m/s
• 0 m/s
• not enough information given
• the velocity given in the problem

A ball rolls off a table top and strikes the floor as shown. Given the measurements made, the time the projectile spent in the air is ---.

• 17 s

• 0.34 s

• 0.58 s

• 0.49 s

A ball rolls off a table and strikes the floor, as shown. If the time the ball spent in the air was 0.58 s, how fast did the ball leave the table?

• 3.6 m/s

• 1.2 m/s

• 2.9 m/s

• 0.99 m/s

Tags

NGSS.HS-PS2-1

A skateboarder rolls off a bridge into the river as shown. If the skateboarder was originally moving at 7.0 m/s, how much time did the skateboarder spend in the air?

• 1.3 s

• 0.79 s

• 38.5 s

• 0.70 s

• Not enough information given.

A skateboarder rolls off a bridge into the river as shown. If the skateboarder spent 0.79 s in the air, how far above the river is the edge of the bridge?

• 5.5 m

• 0.70 m

• 1.3 m

• 3.1 m

• Not enough information given.

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 ball is rolling across a table with a horizontal velocity of 2m/s. It rolls off a table that's 2m tall. How far does the ball land away from the table (Δx)?

• 1.26 m Away
• 4.13 m Away
• 0.98 m Away
• 3.45 m Away