Practice Problems Mixed Two-Dimensional Projectiles

Directions: This worksheet allows you to practice three different modes of releasing two-dimensional projectiles.

release A has sy = 0
release B has sy > 0
release C has sy < 0
release D is thrown horizontally and has sy < 0

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Question 1  For each of the following questions:
• the release velocity V = 20 m/sec
• when thrown at an angle (projectiles A, B, and C), the angle is 42º
• the height of the cliff (projectiles C and D) is 17 meters
• the barrier projectile B strikes is 3.4 meters tall
What is the height of the apex for projectile A?
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Question 2  How fast is projectile A moving as it passes through its apex?
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Question 3  What is the magnitude of projectile A's resultant impact velocity when it returns to the ground?
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Question 4  How much time does projectile B spend in the air before it strikes the barrier?
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Question 5  At what angle does projectile B strike the barrier?
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Question 6  How far horizontally from the point of release is the barrier located?
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Question 7  How high is the apex of projectile C above the bottom of the cliff?
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Question 8  As projectile C passes through its apex which of the following statenments is true?
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Question 9  What is the magnitude of projectile C's resultant impact velocity when it returns to the ground?
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Question 10  How much time does projectile C spend in the air before it strikes the ground at the base of the cliff?
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Question 11  How much time does projectile D spend in the air before it strikes the ground at the base of the cliff?
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Question 12  At what angle does projectile D strike the ground at the base of the cliff?
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Question 13  How far from the base of the cliff does projectile D strike the ground?