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10 Cards in this Set

  • Front
  • Back
Impulse (p)
F*t
Elastic Collisions
(m1v1 + m2v2)before = (m1v1 + m2v2)after
*momentum (p) conserved
*KE conserved
Inelastic collisions
(m1v1 + m2v2)before = (m1+m2)v after
*momentum (p) conserved
*some KE conserved
*some E converted to HEAT
power (P)

(to keep a body in motion at a const v, against an opposing F)
P = F * v
Power (P)

(to move a body through a
particular space)
P = W/t

[W] = [J/s]
momentum (p)
p = m * v

*always conserved
vf
vf = v0 + at
xf
xf = x0 + v0t + 0.5(a)(t^2)
vf^2
vf^2 = v0^2 + 2ax
projectile motion
vx = v0 * cos(theta)
vy = v0 * sin(theta)

*vx is CONSTANT during projectile flight
(remains = v0x until it hits ground)

*gravity slows vy with deceleration of 9.8

*at max height, vy = 0