Projectile Motion Review

In the absence of air resistance, the angle at which a thrown ball will go the farthest is

• 15^o
• 30⁰
• 45^o
• 60⁰

A ball is thrown into the air. At the highest point, the ball has zero vertical velocity and acceleration of 10 m/s2 due to gravity.

• True

• False

A baseball is thrown at a 22.5° angle and an initial velocity of 65 m/s. Assume no air resistance. a) What is the vertical component of the ball’s velocity? b)What is the horizontal component of the ball’s velocity?

• a) 24.9 m/s; b) 60.1 m/s
• a)60.1 m/s; b) 24.9 m/s
• a) 0 m/s; b) 65 m/s
• a + b) 17183.25 m

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

In the absense of air resistance, as an object travels through the air, its horizontal velocity

• changes continuously
• not enough information
• remains the same

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

• 10 m/s

• 0

• not enough information given

• -9.81 m/s

If a projectile was launched and it had a total airtime of 10 s, the time it took to get to the highest point was...

• 10 s

• 2.5 s

• 5 s

• 7.5 s

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 high did the cannonball travel?

• 9963 m
• 39,771 m
• 7.22 m
• 17183.25 m

Tags

NGSS.HS-PS2-4

A golf ball leaves a golf club with an initial velocity of 40 m/s at an angle of 40^o with the horizontal. What is the horizontal and vertical components of the ball's velocity?

• H: 25.7 m/s V: 30.6 m/s

• H: 30.6 m/s V: 25.7 m/s

• H: 40 m/s V: 40 m/s

• H: 61.3 m/s V: 40 m/s