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10 Cards in this Set
- Front
- Back
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Impulse (p)
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F*t
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Elastic Collisions
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(m1v1 + m2v2)before = (m1v1 + m2v2)after
*momentum (p) conserved *KE conserved |
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Inelastic collisions
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(m1v1 + m2v2)before = (m1+m2)v after
*momentum (p) conserved *some KE conserved *some E converted to HEAT |
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power (P)
(to keep a body in motion at a const v, against an opposing F) |
P = F * v
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Power (P)
(to move a body through a particular space) |
P = W/t
[W] = [J/s] |
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momentum (p)
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p = m * v
*always conserved |
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vf
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vf = v0 + at
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xf
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xf = x0 + v0t + 0.5(a)(t^2)
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vf^2
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vf^2 = v0^2 + 2ax
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projectile motion
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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 |
