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The path of a projectile in motion is called a __________.
trajectory
Ignoring air resistance, the trajectories of projectiles are __________.
parabolas
In ballistic motion, we should not mix __________ and __________ for proper calculations.
x- and y- components
The vertical acceleration in projectile motion is constant at __________.
9.80 m/s² down
In horizontal motion, the __________ acceleration is 0 m/s², meaning horizontal velocity is constant.
horizontal
The maximum range in projectile motion occurs at an angle of __________ degrees.
45
Centripetal acceleration is given by the formula __________.
ac = v²/r
The force responsible for centripetal acceleration acts __________ to the direction of the velocity.
perpendicular
Centrifugal force is a perceived force only in an __________ frame of reference.
accelerated
When an object moves in a circle at a constant speed, its __________ changes constantly while its speed stays the same.
direction of velocity
