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the brakes of a car where initial velocity is 30 ms are applied and the car received an acceleration of -200ms2ahow far
a block slides down from rest from the top of an inclined plane 30deg above the horizontal the plane is 100ft long and
1 a 10-kg body is observed to have an acceleration of 5 mssup2 what is the net force acting on it2 a force of 80n gives
1a what is the weight of an object whose mass is 50 slugsb what is the mass of an object whose weight is 50lb2 how much
1 a 3200-lb elevator cab is supported by a cable in which the maximum safe tension is 4000 lba what is the greatest
consider a system of three particles each of mass m whose motions are described by m1a1 f12 f13 m2a2 f21 f23 m3a3
1 pictures below show the loads hanging from the ceiling of an elevator that is moving at constant velocity find the
your adventurous friend lola goes bungee jumping she leaps from a bridge that is 100 m above a river her bungee cord
1 what is the tangential speed of nairobi kenya a city near the equator the earth makes one revolution every 2393 h and
1 a 56 g ball is dropped from a height of 120 m above the top of a spring with a spring constant of 260 nm how far is
1 centrifuges are commonly used in biological laboratories for the isolation and maintenance of cell preparations for
1 in chronological order what happens to the kinetic potential and total energy of the cart for one half cycle the half
1 assume you are walking in front of a motion sensor that graphs the distance you have walked y axis against time x
1 a pendulum is timed as it swings back and forth the clock is started when the bob is at the left end of its swing
the following problems and questions came from physics 7th edition by cutnell and johnson chapter 2-- they include
the weight of a book was measured using a scale the scale showed 15n next the book and the scale were placed in an
suppose we have a river of width 100 feet and two swimmers who both swim at the same speed of 5 feet per second through
when closest to earth mars is 200 times farther away than the moon what parallax angle in arcseconds would the same two
1 if one could repeat the same experiment in the lab located on the moon different weight of the measured objects then
the force exerted on a 0140 kg baseball by a bat changes from 00 n to 10 x 104 n over 00010 s then drops back to zero
1 an automobile traveling on a straight level road at 14 ms speeds up to 25 ms in 30 seconds what was the magnitude of
a gun fires a bullet of mass 22 grams out of a barrel 36 cm long the gun is attached to a spring from the recoil of the
an applied force of 6 newtons acts in the direction of motion of a block of mass 9 kg with the mass being pulled across
1which of the following equations are dimensionally correct a vf vi axb y 2 mcoskx where k 2 m-12the radius of a
a workman carries a sheet of metal up to the roof of a skyscraper by transporting it in the buildings elevator inside