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as a science fair project you want to launch an 800 gram model rocket straight up and hit a horizontally moving target
a ball thrown horizontally at 20 ms travels a horizontal distance of 52 meter before hitting the ground determine from
a boat takes 4 h to travel 30 kilometer down a river then 8 h to return evaluate how fast is the river
a spring of negligible mass has force constant k 1600 nma find how far must the spring be compressed for 350 joule of
find the speed of light observed coming from a star if the star is moving toward us at half the speed of lightfind the
you have a single 60 watt bulb on in your room define how does the overall resistance of your room electric circuit
find the linear speed that the bottom of the test tube must have in a centrifuge if the centripetal acceleration there
two blocks are connected by a string the smooth inclined surface makes an angle of 41o with the horizontal and the
a man is lifting a 210 newton object his spine and back are a uniform rod of weight at 320 newton the erector spinals
a 0027 kilogram bullet is fired vertically at 235 ms into a 015 kilogram baseball that is initially at rest find how
a helicopter winches up an injured man from a boat the man plus equipment has a mass of 111 kilogram if the height of
a horse pulls a cart on a level road with a force of 1400 newton at angle of 250 degree with respect to the horizontal
a jogger runs 100 meter due west then changes direction for the second leg of the run at the end of the run she is 175
a roller coaster moves 200 feet horizontally then raises 135 feet at an angle of 300 degree above the horizontal next
an astronaut is connected to her spacecraft by a 25 meter long tether cord as she and the spacecraft orbit earth in a
an elevator and its load have a combined mass of 1600 kilogram evaluate the tension in the supporting cable when the
a jet plane starts from rest on the runway and accelerates for takeoff at 230 ms2 755 fts2 it has two jet engines
a spring k500nm is compressed 71centimeter it is used to push a 050 kilogram block 50 centimeter along a horizontal
an archer shoots a 100 g arrow straight up in the air the bow was drawn back 50 centimeter by a 150 newton forcecompute
an 830 kilogram race vehicle can drive around an unbanked turn at a max speed of 58 ms without slipping the turn has a
two 335 kilogram masses 744 lb are separated by a distance of 9 meter using newtons law of gravitation obtain the
a 0145 kilogram baseball pitched horizontally at 308 ms strikes a bat and is popped straight up to a height of 559
a tennis player receives a shot with the ball 00600 kilogram traveling horizontally at 580 ms and returns the shot with
for part of the performance of a football kick a punters ankle is moving at a linear velocity of 27923 cms relative to
in a large centrifuge used for training astronauts and pilots a small chamber is fixed at the end of a rigid arm that