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at one instant the centre of mass of a system of 2 particle is located on the x-axis at x 20m and has a velocity of 50
the angular velocity of a flywheel obeys the equation w2 t a bt2 where t is in seconds and a b are constants having
the angle 0 through which a disk drive is given by 0 t a bt- ct3where a b c are constants t is given in seconds and 0
a bucket is being lowered down into a well through a rope passing overa fixed pulley of radius 10cm assume that the
in the below fig wheela of radius ra 10 cm is coupled by belt b to wheel c of radiusrc 25 cm the angular speed of
two uniform solid cylinderseach rotating about its central axishaving the same mass of 125 kg and rotate with the same
a uniform bar has two small balls glued to its ends the bar is 200 m long and has mass 400 kgwhile the balls each have
find the moment of inertia of a hoop a thin -walled hallow ring with mass 5 kg and radius 2m about an axis
find the moment of inertia of a solid cylinder of mass m and radius r about a line parallel to axis of the cylinder and
two identical spheres each of mass 120 kg and radius 100 cm are fixed at the ends of a light rod so that the separation
when a force of 100 n is exerted on the handle of a doorthe door can be just opened if the handle is at a distance of
a wheelof radius 10 cm can rotate freely about its center as shown in figure a string is wrapped over its rim and is
during the launch froma boarda divers angu lar speed about her center of mass changes fromzero to 620 rads in 220 ms
a thin spherica lsheli has a radius of 190 m an applied torque of 960 nm gives the shell an angular acceleration of 620
an electric motor consumes 900 kj of electrical energy in 100 min if one third of this energy goes into heat and other
a woman with mass 50 kg is standing on the rim of a large disk that is rotating at 050 revs about an axis through its
find the magnitude of the angular momentum of the second hand on a clock about an axis through the center of the clock
a solid wood door 100 m wide and 200 m high is hinged along one side and has a total mass of 400 kg initially open and
a small 100 g bug stands at oneend of a thin uniform bar that is initially at reston a smooth horizonta it able the
a 3500n uniform 150m bar is suspended horizontally by two vertical cables at each end cable a can support a maximum
a nuclear plant needs to be set up in the outskirts of a big city the plant needs to be close to the city if the i2r
a 500-khz uniform plane wave propagates beneath the earths surface the amplitude of the - e field just beneath the
a 5-cm-diameter shaft rotates at 4500 rpm in a 15-cmlong 8-cm-outer-diameter cast iron bearing k 70 wm k with a
the following two alternatives are mutually exclusive which one will you select if your marr is 15 per year use rate of