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Linear Momentum (Impulse : (Force during a specific time interval, Change…
Linear Momentum
Object Collsion
Change in momentum is dependent on it being elastic/inelastic
Momentum of individual objects colliding can change.
Impulse
:
Force during a specific time interval
Change in body's total momentum
Time interval in which force acts on a body
J = F x change in time = change in momentum
Potential Energy
Elastic
Gravitational
Kinetic and Potential Energy
KE =1/2mv^2
PE = mgh
KE maximum = PE =0
Conservation of Momentum
Momentum in = Momentum out
Coefficient of Restitution
-e
Height before/ height after
Mechanical Energy Transfer
Muscle
Series and parallel elastic component
Sports Equipment
Minimise loss of energy
Return energy
Types of Collisions
Perfectly inelastic
Objects come together and stay together
Imperfectly elastic
Kinetic energy is transferred to other forms of energy (thermal/potential/sound)
Perfectly elastic
No loss of kinetic energy