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Trajectory of a Projectile
N/A
22
Physics
12th Grade
12/01/2009

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Cards

Term
Why does a bowling ball move across a surface with no acceleration?
Definition
There is no horizontal force
Term
without air resistance, why does the horizontal velocity remain constant but the vertical component changes?
Definition
there is gravitational pull in the vertical component, but not the horizontal
Term
How does free fall compare with the downward motion of a projectile?
Definition
They are the same
Term
If a ball is thrown at a curve and one is thrown horizontally; which strikes the ground first?
Definition
They strike the same
Term
How far below an initial straight line will the ball be after one second
Definition
5 units
Term
At what angle will you get the largest altitude? range?
Definition
75 degrees, and 45 degrees
Term
If the ball's release velocity (upwards) is 20m/s what will the velocity be when caught?
Definition
20m/s
Term
If you throw a ball horizontally at initial velocity of 20 m/s what will the velocity be when caught at the other end of the plane?
Definition
20m/s (same)
Term
Does speed change if air resistance is a factor?
Definition
Yes; decreases
Term
When no horizontal force is acting on the projectile, the horizontal force remains ___
Definition
constant
Term
the vertical component changes with ___
Definition
time
Term
the horizontal and vertical components are ____ of each other
Definition
independent
Term
the ball's horizontal component is ___
Definition
constant
Term
the moving object moves the same horizontal distance in ____ time
Definition
equal
Term
there is ____ forces acting on the horizontal component
Definition
none
Term
Gravity only acts ____
Definition
downward
Term
the only acceleration of the ball is in the ______direction
Definition
downward
Term
A ball launched at a curve and a ball launched straight, will land _____
Definition
at the same time
Term
the path of a projectile with the only acceleration in the vertical direction with a constant horizontal is ____
Definition
parabolic
Term
to find the distance of a ball's location from the non-gravity line, use this equation
Definition
d=5t^2
Term
At the top of the parabola, the vertical component = ___
Definition
Term
What number must two equi-distant angles add up to?
Definition
90 degrees
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