Horizontal Projectiles

Click all the measurements needed to determine the range of a horizontal projectile.

• height

• horizontal velocity

• mass of the projectile

Which best describes the horizontal motion of a projectile, assuming no air resistance?

• Acceleration of -9.8 m/s²

• Acceleration of -5 m/s²

• An increasing acceleration every second

• Constant velocity

A soccer ball is kicked horizontally off a cliff. What information is needed to find the time to fall?

• The height of the cliff

• The initial speed of the ball

• The mass of the ball

• All of these

Tags

NGSS.HS-PS2-4

How comfortable are you solving horizontal projectile problems?

• Very comfortable

• I'm pretty sure I've got it

• I feel okay but not great

• I'm so confused please help (ask for help if this is you!)

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

If the cannonball from the previous question is fired with a horizontal velocity of 140 m/s, how far will it travel horizontally?

• 141.4 m

• 282.8 m

• 176.3 m

• 83.8 m

The final requirement for a degree in geology is Field Camp, an 8 week field experience in which budding geologists must complete rigorous real-world mapping projects. To celebrate the end of field camp, one student threw his rock hammer off of a 78 m cliff with a horizontal velocity of 34 m/s. He was then reminded that he had one more day of field work, so he needed to go get his hammer. How far away from the cliff did he have to walk in order to find his hammer?

Solve for time first t= sqrt(2d/g)

then Horizontal Distance d=vt

• 221.78 m

• 153.23 m

• 135.65 m

• 78.98 m

Tags

NGSS.HS-PS2-4

A player kicks a ball across the field. At the very top, what is the acceleration of the ball?

• It is accelerating to the right

• There is no acceleration at the top

• 9.8 m/s² up

• 9.8 m/s² down

Tags

NGSS.HS-PS2-1

Victor Velocity is standing on top of the roof of his house, firing stones with his slingshot over a level field. He is aiming straight outward, horizontally. If Victor pulls back harder on the sling to shoot a stone, which of the following quantities will be changed?

• The vertical displacement of the stone.

• The distance the stone travels, and the horizontal velocity.

• The time it takes the stone to strike the ground, and the horizontal velocity.

Tags

NGSS.HS-PS2-1

The horizontal velocity of a projectile dropped from a moving object is the___________ as the velocity of the

moving object.

• 0 m/s

• same

• greater than

• less than but not 0 m/s

Which of the following statements about the horizontal and vertical components of projectile motion is true?

• Changes in the horizontal component occur only when the vertical component changes.

• Both the horizontal and vertical components are always constant.

• The vertical component changes while the horizontal component stays the same.

• The horizontal and vertical components are dependent of each other.