Flashcards
Projectile Motion Flashcards
Flashcards do conjunto (4)
- 1Air resistance Definition"A frictional force that opposes motion (producing a deceleration) due to an object moving through air particles
- 2Projectile Motion Definition"a motion that can be separated into a two component motion, a horizontal component travelling at constant velocity and a vertical component travelling at constant acceleration forming a parabolic path"
- 3Constant Velocity in horizontalno ΔV horizontal >no a horizontal >F=0
a=(∆V )/t F=ma
a∝ ∆V F∝ a
To show constant velocity reverse above sequence, from no F horizontal (ignoring air resistance) - 4Vertical velocity componentchanging vertical velocity due to different lengths of vertical vectors on diagram
∴ ∆V (∆Vi = Vf - Vi)
∴ > a (a=(∆V )/t) a∝ ∆V
∴ >F (F=ma) F∝ a
As F vertical (F due to gravity) > a > ∆V ∴ changing velocity
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