Projectiles

Which angle will produce the greatest height (in the absence of air resistance)?

• 0 degrees
• 45 degrees
• 90 degrees
• none of these

What angle will give you the greatest range in the x direction?

• 30 degrees
• 45 degrees
• 60 degrees
• 90 degrees

Two objects of the same mass are launched from the ground. Object A has a launch angle of 45, while Object B has a launch angle of 65. Which object has the greatest maximum height height?

• A
• B
• Both objects reach the maximum height
• unable to determine with the given information

Two objects of the same mass are launched from the ground. Object A has a launch angle of 45, while Object B has a launch angle of 65. Which object will hit the ground first?

• A
• B
• Both objects hit the ground at the same time
• unable to determine with the given information

A cannonball is fired at a 45.0° angle and an initial velocity of 625 m/s. Assume no air resistance. What is the vertical component of the cannonball’s velocity? What is the horizontal component of the cannonball’s velocity?

• -625 m/s; 625 m/s
• 441.9 m/s; 441.9 m/s
• -441.9 m/s; 441.9 m/s
• 0 m/s; 625 m/s

A cannonball is fired at a 45.0° angle and an initial velocity of 625 m/s. Assume no air resistance. How long until the cannonball hits the ground?

• 75.4 s
• 45.2 s
• 62.3 s
• 90.2 s

Tags

NGSS.HS-PS2-4

How is vertical velocity calculated for a projectile fired at an angle?

• V cos Θ
• V sin Θ

What do the x & the y projectile formulas have in common, and can be used interchangeably?

• V_x
• V_y
• y
• t

A cannon ball is launched at a 45 degree angle from the ground, when is its acceleration the greatest?

• it is the same everywhere
• at the top
• at the bottom
• swag

Tags

NGSS.HS-PS2-1

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

Tags

NGSS.MS-PS2-4