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Physics-Momentum and Impulse
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Review/study guide for the physics test on Thursday. Probably will show up on additional tests/quizzes. Have Fun! raexin@gmail.com to contact me
Terms in this set (19)
momentum
Property a moving object has due to its mass and motion; "mass in motion"; vector
impulse
Amount of change in momentum; vector
force of impact
How hard an object hits
time of impact
Amount of time the impact lasts
momentum equation
P = MV
direction of momentum
same as direction of velocity
momentum symbol
p
impulse equation
I = Ft
impulse unit
Ns
momentum unit
kgm/s/s (kilogram meter per second squared)
conservation of momentum
" For a collision occurring between object 1 and object 2,the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision. "
conserved
term applied to a physical quantity that remains unchanged during interactions
collision
when two or more objects come in contact with each other
collision types
elastic and inelastic
elastic collision
A collision in which colliding objects rebound without lasting deformation or the generation of heat; kinetic energy is CONSERVED; momentum IS conserved
inelastic collision
A collision in which the colliding objects become distorted, generate heat, and possibly stick together; kinetic energy is NOT CONSERVED; momentum IS conserved
equation: if 2 objects stick together after the collision
m1 x v1B + m2 x v2B = (m1 + m2)v
equation: general formula for 2 objects colliding
m1 x v1B + m2 x v2B = m1 x v1A + m2 v2A
Impulse-Momentum change theorem
amount of impulse equals to the amount of change in momentum
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