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Unformatted text preview: Displacement vector m average velocity m/s instantaneous velocity m/s Average acceleration m/s2 Instantaneous acceleration m/s2 With Constant Acceleration velocity m/s Displacement m/s2 velocity m/s Displacement m In Projectile Motion Maximum Height m Horizontal Range : The angle of the vector m The time at the projectile
reaches the peak linear momentum Newton’s second law the horizontal. s kg.m/s N m : mass
v : v elocity with the momentum of an isolated Conservation of Linear kg.m/s Momentum Impulse system kg.m/s kinetic energy J In Two Dimensional Collisions kg.m/s elastic collision kg.m/s perfectly inelastic collision m/s
twodimensional collision in which
particle 1 of mass m1 collides with In glancing collision particle 2 of mass m2 , where
particle 2 is initially at rest  momentum of the system is conserved in all collisions, but kinetic energy of the system is conserved only in elastic
collisions. M : total mass position of the center of mass m Velocity of the center of mass m/s Acceleration of the center of mi : particles masses 2 m/s mass
Total momentum of a system kg.m/s of particles
Newton’s second law for a N system of particles Rocket Propulsion
The operation of a rocket depends upon the law of conservation of linear momentum as applied to a system of
particles, where the system is the rocket plus its ejected fuel. average force exerted on the
gun n : is the number of bullets fired N each second .
: the magnitude of the Conservation of Momentum kg.m/s momentum of a rocket plus its fuel
.
: the exhaust speed Expression for rocket
propulsion
Thrust on the rocket Rotation of a Rigid Object About a Fixed Axis r : fixed distance from the origin,
(vector Position) arc length : the artificial unit radian angle. angular displacement average angular speed rad/s instantaneous angular speed rad/s average angular acceleration rad/s instantaneous angular
acceleration 2 rad/s2 ...
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 Summer '11
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