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- 1. Multiple Choice
A cannonball is fired at a 45.0° angle and an initial velocity of 625 f/s. Assume no air resistance. Find the horizontal coordinate of the cannonball after 2 seconds.
1250 f/s
883.9 f/s
441.9 f/s
328.3 f/s
- 2. Multiple Choice
The height of an object can be modeled by the formula h(t) = -16t2 + 70t + 95, where h(t) is in feet after t seconds.
What is the height of the object after 5 seconds?
95 feet
45 feet
70 feet
171.56 feet
- 3. Multiple Choice
An NFL punter at the 20 yard line kicks a football downfield with an initial velocity of 75 ft/sec at an angle of 660. The ball leaves his foot at a height of 3 feet.
Model the scenario using parametric equations.
x = (20cos(660))t; y=-16t2 + (20sin(660)t + 75
x = (20cos(660))t; y=-16t2 + (20sin(660)t + 3
x = (75cos(660))t; y=-16t2 + (75sin(660)t + 20
x = (75cos(660))t; y=-16t2 + (75sin(660)t + 3
- 4. Multiple ChoiceA ball is thrown horizontally at a height of 2.2 meters at a velocity of 65 m/s. Assume no air resistance. How long until the ball reaches the ground?0.45 s0.67 s0.22 s0.47 s
- 5. Multiple ChoiceA ball is thrown horizontally at a height of 2.2 meters at a velocity of 65 m/s. Assume no air resistance. How far did the ball travel horizontally when it hit the ground?14.3 m30.55 m65 m43.55 m
- 6. Multiple Choice
What is the initial height of the parabola?
h = 0.563
h = 10.063
h = 5
h = 1.356
- 7. Multiple Choice
How long does it take the parabola to reach the ground?
t = 0.563
t = 10.063
t = 5
t = 1.356
- 8. Multiple Choice
A stone is thrown off a bridge 70 feet above the water at an angle of elevations of 48 with an initial velocity of 40 feet per second. Find the maximum height of the stone.
83.81 feet
84.57 feet
85.02 feet
86.38 feet
- 9. Multiple Choice
A stone is thrown off a bridge 70 feet above the water at an angle of elevations of 48° with an initial velocity of 40 feet per second. Find the horizontal distance the stone traveled at the time it reaches the surface of the water (h = 0)
83.04 fett
83.92 feet
84.56 feet
86.18 feet
- 10. Multiple Choice
A stone is thrown off a bridge 70 feet above the water at an angle of elevations of 48 ° with an initial velocity of 40 feet per second. Find the height of the stone at the time it reaches a horizontal distance of 80 feet.
14.76 feet
15.12 feet
15.84 feet
16.22 feet
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