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during morning jogging a man walks 10 turns of a rectangularground of length 30 metre and breadth 15 m in 15 minutes
a boy pulls a box of mass 30 kg with a force of 25 nin a direction from left to righta ignoring friction of the box
jane and john with masses if 50 kg and 60 kg respectivelystand on a frictionless surface 10 m apart john pulls on a
a constant force changes the speed of a 76 kg sprinter from3ms to 4ms be 045s what is the magnitude in ms2of the
a ball is droprd from a height of 784 metres above the grounda the final velocity just before hitting the groundb the
one gallon of paint volume 378 x 10-3 m3 covers an area of 250 m2 what is the thickness of the fresh paint on the
a volleyball is spiked so that its incoming velocity of40ms is changed to an outgoing velocity of -21 ms the mass ofthe
a certain gyroscope consists of a uniform disk with a 47 cm radius mounted at the center of an axle that is10 cm long
a 130 kg bucket of water of is suspendedby a rope wrapped around a pulley which is just a solid cylinder0300 m in
a baseball outfielder throws a 0150 kgbaseball at a speed of 400 ms and an initial angle of 320deg what is the kinetic
a 57 muf capacitor is charged with36times105 c what potential difference exists across
in an emergency stop to avoid an accident a shoulder-strapseat belt holds a 60-kg passenger firmly in place if the car
in a college homecoming competition 16 students lift asports car while holding the car off the ground each
vector a has polar coordinates 5 60oand vector b has polar coordinates 3135o what the scalar product of the two
a boy pushes a box that has a mass of 355 n up an incline ifthe boy exerts a force of 67 n along the incline what is
two 150-v batteries-with their positive terminals in thesame direction-are inserted in series into the barrel of a
a 65 g bullet traveling at 290 ms penetrates a block of ice at 0degc and comesto rest within the ice assuming that the
the primary coil of a transformer makes 40 turns around the iron core and the secondary coil of that transformer makes
a single square loop of wire has a resistance of 2 ohm the lengthof each side of the square is 05m a magnetic field
a 60kg including equipment olympicski-jumper starts with pushes off from the starting gate agiving her an initial
a car is towing a boat on a trailer the driver starts from restand accelerates to a velocity of 192 ms in a time of 27
a viewing screen is separated from a double-slit by 12m thedistance between the two slits is 0030mm the second order
a canoe heading 30 degrees west of north is being paddled at a rateof 7 mih the current is pushing a the canoe 20
it takes 105 j of work to move21c of charge from a positive plate to anegative plate what voltage difference exists
two waves are traveling in the same direction along astretched string each has an amplitude of 40cm assume the wavesare