Horizontal Projectile

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

• acceleration due to gravity

• constant velocity

• varying acceleration

• motionless

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

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

• Stays the same

• Accelerates at -9.8 m/s²

• Accelerates at an unknown value

• Becomes zero

A ball rolls off of a horizontal table and falls to the ground. The instant the ball leaves the table its vertical velocity is...

• -9.8m/s
• Unknown
• 0m/s
• 9.8m/s

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 (dx)?

• 1.26 m Away

• 4.13 m Away

• 0.98 m Away

• 3.45 m Away

What is the vertical acceleration (y direction) of a projectile?

• 0 m/s²

• 9.8 m/s² down

• 4.9 m/s² down

• 12 m/s down

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

• 10 m/s

• 0 m/s

• not enough information given

• the velocity given in the problem

An object is projected horizontally from a cliff.  The time it takes to hit the ground is

• more than if it was just dropped
• less than if it was just dropped
• the same amount of time than if it was just dropped
• impossible to determine

What is the horizontal acceleration (x direction) of a projectile?

• 0 m/s²

• -9.8 m/s²

• -15 m/s²

• - 20 m/s

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

• Shot Bullet
• Dropped Bullet
• Hit at Same Time
• Can not be determined