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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
calculate the magnitude of the linear momentum for the following casesa a proton with mass 167 x 10-27 kilogram moving
a crate of mass 105 kilogram is pulled up a rough incline with an initial speed of 150 ms the pulling force is 100
a wire has a resistance of 229 ohm its melted down and from the same volume of metal a new wire is made that is four
a block with a mass m160 kilogram sitting on a frictionless table is connected to a suspended mass m220 kilogram by a
a standard door into a house rotates about a vertical axis through one side as defined by the doors hinges a uniform
50 small round balloons float in a volume with surface area 10m x 10m and a width of 05 meter each balloon has a
a parachute dropped from a 30-m high cliff falls with a fix velocity of 15 ms twenty two seconds later a stone is