Rotational Motion A circular disk has a diameter of 18-cm——-find speed & distance A wheel initially at rest starts to spin——find angular speed A sphere initially at rest experiences a uniform angular acceleration——find angular acceleration Calculate the torque produced by a force of 10-N——–find torque A door is pushed at a point 95-cm from the hinges——–find torque A uniform horizontal rod weighs 3.0-kg———find torque Two boys sit on a see-saw as shown in fig below———find distance A uniform meter stick of mass 1-kg is hanging———find torque An object in the form of thin spherical shell———–find moment of inertia The moment of inertia of a bicycle rim————-find mass A small wheel has a moment of inertia———-find torque A disk has a mass of 250-g————find torque
Newton’s law of Gravitation Two objects one of mass 50-kg———find force Calculate the gravitational force between earth and the sun——find force The force of attraction between two masses of 30-kg———find distance Calculate the acceleration due to gravity on the moon——-find acceleration Satellite A is three times the mass of satellite B———-find velocity A satellite orbits at a distance of 22000 mi———find orbital period
Circular Motion An object is moving in a circular path of diameter 20 cm——-find speed A 75 cm diameter wheel is spinning——-find speed, acceleration A car moves in a circular path with a constant speed of 40 m/s——find acceleration An object has a uniform circular motion along a path of radius 4 cm——find frequency, time period An object of mass 6-kg is moving in a circular path———-find centripetal acceleration, force A 20-kg mass is attached to a string that has a breaking strength———-find speed An object of mass 3-kg is attached to a string of length 15-m——–find tension A car of mass 800-kg is negotiating a turn of radius 20-m———-find speed A ball of mass 0.5-kg is rotated in a vertical circle———find tension A car is negotiating a curve that has a radius of 40-m————find speed A roller coaster has a speed of 16-m/s———–find normal force
Force An object of mass 5 kg———find force A car has a mass of 1200 kg——find force A large crate experiencing an external force of 300 N——find the force of friction A box of mass 5 kg———find coefficient of friction A 40 kg box sliding down a ramp——–find coefficient of friction A box slides down a surface———–find acceleration A mass of 7 kg and a mass of 4 kg are connected——–find acceleration, tension One end of a massless string is connected to block——-find acceleration, tension One end of a massless string is connected to block A of mass 5 kg——find acceleration, tension
Displacement, Velocity and Acceleration A car has an initial velocity of 30 m/s——-find distance An object has an initial velocity of 5 m/s—–find distance A stone is dropped from the top of a cliff 40m—–find time An object is dropped from a height of 30m——find velocity A rock is thrown upwards with an initial velocity of 10 m/s——find height A ball is thrown straight upwards from the ground——find time A rock is projected horizontally from a cliff of height 75m——find time A rock is projected horizontally from a cliff of height 120m—–find distance A ball is kicked from the ground with an initial velocity of 25 m/s——find height, time
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