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a rubber ball is dropped from rest 30m onto level groundwhats the balls speed when it hits the groundbouncing back the
suppose a friend asks to examine the 100 kg box you were given hoping to guess what is inside and you respond sure pull
a dock worker applies a constant force of 800 n to a block of ice on a smooth horizontal floor the frictional force is
a projectile is launched at an angle of 3369 degrees from the horizontal and lands down range at the same level if the
a counter attendant in a diner shoves a ketchup bottle with a mass 030 kg along a smooth level lunch counter the bottle
a small mass m is set on the surface of a sphere fig 4-51 if the coefficient of static friction is micros 057 at what
a model of a helicopter rotor has four blades each of length 390 m from the central shaft to the blade tip the model is
the passengers in a carnival ride travel in a circle of radius 50 m they make one complete circle in a time t40 s what
a major leaguer hits a baseball so that it leaves the bat at a speed of 300 ms and at an angle of 369o above the
a long jumper leaves the ground at an angle of 200o to the horizontal and at a speed of 110 ms how far does he
a long jumper leaves the ground at an angle of 200o to the horizontal and at a speed of 110 ms what is the takeoff
a long jumper leaves the ground at an angle of 200o to the horizontal and at a speed of 110 ms how long does he take to
the acapulco cliff diving competition which was made famous in the 1970s on abcs wide world of sports involves a
a home-run baseball is hit with an initial speed vo370 ms at an initial angle qo531oa find the balls position and the
a 160 object is taken to a height of 320 above the earths surface what is the objects mass at this
an indy car with a speed of 140 goes around a level circular track with a radius of 150 what is the centripetal
a 60 kg man is ice skating due north with a velocity of 60 ms when he collides with a 38 kg child the man and child
a block of mass 20 kg is at rest on an incline with variable angle theta the distance from the block to the bottom end
a velodrome is built for use in the olympics the radius of curvature of the surface is 201 m at what angle should the
three identical masses of 340 kg each are placed on the x axis one mass is at x1 -120cm one is at the origin and one
a 20-kg block m1 with a pulley attached slides along a frictionless ledge it is connected by a massless string to a
a gun is fired 20 degrees to the horizontal at the edge of a cliff 300m above a flat plane where its target is located
a small sphere that carries a charge of 645 c is whirled in a circle at the end of an insulating string the angular
a wheel 321 cm in diameter accelerates uniformly from 227 rpm to 363 rpm in 511 s how far will a point on the edge of
a person places a cup of coffee on the roof of her car while she dashes back into the house for a forgotten item when