Unit 3 Projectile Motion

What is the vertical acceleration of a projectile?

• 0 m/s²
• 9.8 m/s²

A bullet is fired horizontally at a height of 1.3 meters at a velocity of 950 m/s. Assume no air resistance. How far did the bullet travel horizontally when it hit the ground?

• 252.04 m
• 489.32 m
• 126.02 m
• 346.00 m

A projectile is fired straight upward at 100 m/s. How fast is it moving at the instant it reaches the top of its trajectory?

• - 9.8 m/s
• 0 m/s
• 9.8 m/s
• 19.6 m/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

Which of the following would NOT be considered a projectile? 

• a cannonball thrown straight up
• a cannon ball rolling down a slope
• a cannonball rolling off a table
• a cannonball thrown in the air

If you throw a baseball straight up, what is its acceleration at the highest point?

• 9.8 m/s²
• 9.8 m/s
• 0 m/s²
• 0 m/s

What is the horizontal acceleration of a projectile?

• 0 m/s²
• 9.8 m/s²

What is the shape of the path of any projectile?

• Parabolic

• Hyperbolic

• Linear

• Logarithmic

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

Romeo threw a 2.8-kg squash horizontally off the top of the school roof in order to hit a target. The target is 12.4 m away from the base of the building. The building's roof is 11.4 m high. Assuming no air resistance, with what horizontal speed must he toss the pumpkin?

• 14.3 m/s

• 8.13 m/s

• 5.8 m/s

• 22.1 m/s