Projectile Motion Problem Solving 1

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

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

A baseball is thrown at a 22.5° angle and an initial velocity of 65 m/s. Assume no air resistance. How far did the ball travel horizontally when it hit the ground?

• 500.76 m
• 31.63 m
• 103.7 m
• 305.05 m

If I throw a crayon straight up at 12m/s, how fast is its speed when i catch it at the same height?

• -6 m/s
• -12 m/s
• -18 m/s
• -24 m/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

What is true about the horizontal motion of a projectile?

• It accelerates backwards at 9.81 m/s²

• It accelerates forwards at 9.81 m/s²

• It moves at a constant horizontal velocity.

• It cannot be determined.

What is true about the vertical motion of a projectile?

• It accelerates downwards at 9.81 m/s²

• It accelerates upwards at 9.81 m/s²

• It moves at a constant vertical velocity.

• It cannot be determined.

What is the horizontal acceleration of a projectile?

• 0 m/s²
• 9.8 m/s²

Tags

NGSS.HS-PS2-1

What is the vertical acceleration of a projectile?

• 0 m/s²

• -9.8 m/s²

If you are trying to find the horizontal component (Vx) of a projectile's velocity, what trigonometry function would you use?

• Cosine

• Sine

• Tangent

• Traxoline