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a 40 n force applied at an angle of 37 degrees above the horizontal pulls a 5kg box on a horizontal floor the
the position of a particle moving along the x axis depends on the time according to the equation x ct2 - bt5 where x
two particles move along an x axis the position of particle 1 is given by x 900t2 600t 500 in meters and seconds the
a rocket-driven sled running on a straight level track is used to investigate the effects of large accelerations on
a lead ball is dropped in a lake from a diving board 732 m above the water it hits the water with a certain velocity
a certain sprinter has a top speed of 106 ms if the sprinter starts from rest and accelerates at a constant rate he is
two balls having masses m and 2m are fastened to two light strings of same length l which is held horizontallysay x
a ring of radius r is to be mounted on a wheel of radius r the coefficient of linear expansion of the material of the
a massless rope is stretched horizontally between two supports that are 30 m apart when an object of weight 3200 n is
assume that a tunnel is dug across the earthradius r passing through its center find the time a particle takes to cover
a man leaves the garrage in his house and drives to a neighbouring town which is twenty kilometres away from his house
a stone thrown from ground level returns to the same level 4 s after with what speed was the stone thrown take
entropy arrow of timewhy did the universe have such low entropy in the past resulting in the distinction between past
suppose that two stars in a binary star system are separated by a distance of 80 million kilometers and are located at
sand drops at the rate of 2000 kgmin from the bottom of a hopper onto a belt conveyor moving horizontally at 250 mmin
the block m11 kg sliding on a flat frictionless surface is connected by a string over a pulley to the hanging block
a cricket bowler can bowl a 158 g ball at 147 kmhr calculate the kinetic energy of this bowl and use this to compare to
you are trying to push a crate across the rough floor of a warehouse just before the crate begins to move you have
a wheel of mass 080kg and radius 030m is rolling without slipping up a plane 15 degrees to the horizontal at some
a car driving at 350 ms takes 26 minutes to travel a certain distance according to the drivers clock in the car how
a spring with a spring constant k 2 nm is used to project a mass around a loop of radius r2m to what minimum distance
a reservoir of carbon tetrachloride ccl4 has a mass of 500 kg and a volume of 0315m3 find the carbon tetrachloride
after an impact involving a non-functioning satellite a paint chip leaves the surface of the satellite at a velocity of
mario is doing pull-ups about 1 meter from the end of the hour hand of a clock on the big ben tower in londonmario
an 800kg roller coaster car is launched horizontally from a giant spring k 35 knm rolls 10 m and them goes thru a