projectiles and vector review

What is true about the horizontal velocity of a projectile? (neglecting air resistance)

• The horizontal velocity is constant.

• The horizontal velocity varies with time.

• The horizontal velocity is zero.

• The horizontal velocity varies with mass.

What is the vertical velocity of a projectile at the peak of travel?

• 0 m/s

What is the horizontal acceleration of a projectile?

• 0 m/s

Tags

NGSS.HS-PS2-1

Which of the following statements is NOT true?

• The horizontal acceleration is always zero.

• Vertical acceleration of a projectile is constant. 

• Horizontal and vertical components of projectile are dependent on each other.

• Horizontal and vertical components of projectile are independent on each other.

What is the acceleration of a ball after one second and hit vertically upwards by a player?

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

Mark all of the following objects that are actually projectiles.

• An object moving through the air and not touching any surfaces

• A falling skydiver with an open parachute

• Any object falling with no air resistance

• A football kicked toward the goal posts

• An airplane flying through the air

Tags

NGSS.MS-PS3-1

A projectile is launched horizontally from the top of a 45.2-meter high cliff with a velocity of 5.9 meters/second. Determine the range of the projectile

• 17.9 m

• 45 .2 m

• 26.5m

• 59m

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

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

• 0

• 9.8

• -9.8

• not enough information given

What is the shape of the path of any projectile?

• Hyperbolic

• Linear

• Parabolic

• Logarithmic