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a ball is shot from a compressed air gun at twice its terminal speed for the subsequent suppose the drag force depends
observers in a frame s arrange for two simultaneous explosions at time t0 the first explosion is at the originx1y1z1 0
bob and joe are each making a 500 mile trip bob leaves at noon and drives 65mph uniformly joe leaves at1240 pm find how
a 250 gram object moving to the right at 200 cms overtakes and collides elastically with a 80 gram object moving in the
starting form rest a 500 kilogram block slides 250 meter down an incline of 300o the coefficient of kinetic friction
a sound wave travels twice as far in neon ne as it does in krypton kr in the same interval both neon and krypton can be
a siren is made by blowing a jet of air through 20 equally spaced holes in a rotating disk the time it takes for
a 14 kilogram box slides down a long frictionless incline of angle 30 degree it starts from rest at time t 0 at the
you are pushing a refrigerator across the floor of your kitchen you exert a horizontal force of 330 newton for 76
in a circus act a 80 kilogram clown is shot from a cannon with an initial velocity of 19 ms at some unknown angle above
a 0350 kilogram particle slides around a horizontal track the track has a smooth vertical outer wall forming a circle
a 20 gram particle moving at 50 ms makes a perfectly elastic head on collision with a resting 10 gram objecta evaluate
a spring with spring constant k 160 nm is suspended vertically with its upper end fixed to the ceiling and its lower
after a day of testing race cars you decide to take your own 1550 kilogram car onto the test track while moving down
the coefficient of kinetic friction between the floor and a block is 025 if the suitcase has a mass of 62 kilogram
a helicopter is flying horizontally at a speed of 60 ms and accidentally drops a storage pod from an elevation of 300 m
a cameraman on a pickup truck is traveling westward at19 kmh while he videotapes a cheetah that is moving westward 24
a group of physics students are conduction an experiment in projectile motion they want to launch a ball into a bucket
a roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r a passenger feels the
a 95 kilogram monkey is hanging by one arm from a branch and is swinging on a vertical circle as an approximation
a 50 kilogram block and a 100 kilogram block are connected by a string running over a negligible pulley therefore that
a roller coaster vehicle with a mass of 750 kilogram starts at rest from a point 32 meter above the ground at point b
a uniform electric field exists in a region between two oppositely charged plates an electron is released from rest at
a 20 gram particle moving at 50 ms makes a perfectly elastic head on collision with a resting 10 gram objecta calculate
a block of mass 250 kilogram is pushed 200 meter along a frictionless horizontal table by a constant 200 newton force