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18 Cards in this Set
- Front
- Back
The horizontal distance that a projectile can travel is called ....
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range
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The height that a projectile can reach is its....
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altitude or peak
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The time for a projectile to travel horizontally is the ____ as the time it takes for it to travel vertically.
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same
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The horizontal velocity of a projectile _____ if wind resistance is ignored.
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is constant (stays the same)
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If a hurled marble has an initial horizontal velocity of 8 m/s, then what is the horizontal velocity as it is striking the ground?
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8 m/s
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What is the vertical velocity of a golf ball at the peak of its trajectory as it moves forward at 150 m/s?
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0 m/s
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A projectile has both _____ and ______ components of velocity.
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horizontal
vertical |
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It's the ____ velocity of a projectile that stays the same.
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horizontal
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It's the _____ velocity component of a projectile that causes to curve downward as it flies forward.
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vertical
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The name given to the path taken by a projectile is the ....
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trajectory
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For maximum range, a projectile should be fired at ____ degrees
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45
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If a projectile were fired at 40 degrees at what different angle would you need to fire the same projectile at the same speed to hit the same range mark?
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50 degrees (the complement to 40 degrees)
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If you know the time that a golf ball is in the air, how much of that time do you need to know to determine the altitude of the ball, if ball comes back to original altitude?
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Half the time.
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The _____ of a golf ball hit an angle of 39⁰ and at its maximum altitude is 0 m/s.
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up/down velocity
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What is the vertical displacement of a golf ball that is hit upward at an angle and returns to ground at the same altitude as the green?
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y = 0 (up +y and down -y)
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What is the short cut for finding time for an up/down projectile when y = 0?
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t = -2(Vvertical) / g
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Which equation helps you find range?
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x = (Vhorizontal) (t)
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The horizontal component of a projectile's velocity is ______ of the vertical component.
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independent
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