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your friends car runs out of fuel and you volunteer to push it to the nearest gas station you carefully drive your car
a 30 kg boy rides a roller coaster the acceleration of gravity is 98 ms2 with what force does he press against the seat
two blocks m1 and m2 are connected by a mass-less string that passes over a mass-less pulley m2 which has a mass of 20
a 31 kg child sits in a swing supported by two chains each 45 m long if the tension in each chain at the lowest point
two forces are applied to a block of mass m equal to 14 kg that sits on a horizontal frictionless table one force f1
need full body diagram for an arrow is shot at an angle such that its horizontal velocity is 40 ms and its vertical
a railgun accelerates a projectile using an electric current circulating through two parallel rails and the projectile
a polonium nucleus m1 210 amu at rest emits an alpha particle m2 4 amu to the right as a result the nucleus travels
a garden hose is attached to a water faucet on one end and a spray nozzle on the other end the water faucet is turned
a woman who can row a boat at 51 kmh in still water faces a long straight river with a width of 64 km and a current of
zach whose mass is 83kg is in an elevator descending at 10ms the elevator takes 34s to brake to a stop at the first
a 22times104kg rocket has a rocket motor that generates 31times105n of thrust1 what is the rockets initial upward
a boy whirls a stone in a horizontal circle of radius 19 m and at height 18 m above level ground the string breaks and
an airbus a320 jetliner has a takeoff mass of 75000 kg it reaches its takeoff speed of 98ms 220mph in 38s coefficient
a charge of -401 c is fixed in place from a horizontal distance of 00392 m a particle of mass 724 x 10-3 kg and charge
a 40-m-long steel wire has a cross-sectional area of 0050cm2 its proportional limit has a value of 00016 times its
at t 0 an object of mass m is at rest at x 0 on a horizontal frictionless surface a horizontal force fx f0 1-t t which
in lab tests on a 925cm cube of a certain material a force of 1375n directed at 850degree to the cube as shown in the
a plane diving with constant speed at an angle of 407deg with the vertical releases a projectile at an altitude of 622
a 117kg including all the contents rocket has an engine that produces a constant vertical force the thrust of 1820n
a current given by it3t3 where i is in amps when t is in seconds passes through a 5- resistor how much energy is
the initial kinetic energy of the neutron is 250x10-13 ja find its final kinetic energyb find the kinetic energy of the
70 kg bucket of water is raised from a well by a rope if the upward acceleration of the bucket is 31 ms2find the force
a child throws a stone from the top of a 15 m cliff with a speed of 20 ms if the stone weighs 2 n find its kinetic
a 72-kg fisherman in a 133-kg boat throws a package of mass m 15 kg horizontally toward the right with a speed of vi