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### 25 Cards in this Set

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 Momentum (p)= mv What is an elastic collission 1) Momentum is conserved 2) KE is conserverd What is an inelastic collission 1) Masses Add 2) Momentum is conserved 3) Ke is not conserved Gravitational Force is due to Centripetal Force G.Mm/r^2 = mv^2/r A circular plate will experience _________ expansion through out uniform Masses released simultaneously from rest have the same acceleration or they fall at the ______ rate same Period of a Spring T= 2pi √m / k Frequency of a Spring 1/T Equilibrium position of a spring means _____ Elastic PE is available at that point no Accuracy is the _____ no of digits smallest compared to the values given If speed is constant acceleration = 0 For a pulley system acceleration and tension are....... constant Weight is a force that the _____ exerts on a body earth Objects closer to the centre of rotation have: 1) greater angular velocity 2) greater KE 3) greater acceleration Objects further from the center of rotation have: 1) greater moment of inertia 2) greater linear velocity 3) greater angular momentum Negative velocity means displacement is...... decreasing Planets with lower orbits or smaller radii move faster s is (in terms of kinematic eqns) displacement Action- Reaction force act on different objects An object does not have to be at_____ if net force is 0 rest Horizontal motion does not depend on (in terms of a trajectory) _____ gravity Any two objects in the universe exert an ______ force on each other attractive Essentials for Circular Motion 1) Speed- constant 2) Velocity- magnitude constant direction changing 3) Acceleration- same as velocity Magnitude does not relate to sign Turning Force fd or fdsin0f