A 5.52 kg rock is dropped and allowed to fall freely. Find the initial kinetic energy,...
A 5.52 kg rock is dropped and allowed to fall freely. Find the initial kinetic energy, the final kinetic energy, and the change in kinetic energy for the first 2.00 m of fall. Find the initial kinetic energy, the final kinetic energy, and the change in kinetic energy for the second 2.00 m of fall.
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A 5.52 kg rock is dropped and allowed to fall freely. Find the
initial kinetic energy,...
Find the initial potential and kinetic energy of a 5kg rock that falls from a height...
Find the initial potential and kinetic energy of a 5kg rock that falls from a height of 300 km above the earth's surface, if its initial speed is 400 m/s. (Do not use the PE = mgh approximation.)
A 2.45 kg rock is dropped from the top of a 15.5m vertical cliff a)What is...
A 2.45 kg rock is dropped from the top of a 15.5m vertical cliff a)What is the potential energy of the rock relative to the base of the cliff before it is dropped b) What is the kinetic energy of the rock just before it hits the ground below? c) What is the velocity of the rock at a point 5.00 m above the base of the cliff? d) How much total energy does the rock have half way down?
At time t = 0, a rock climber accidentally allows a piton to fall freely from...
At time t = 0, a rock climber accidentally allows a piton to
fall freely from a high point on the rock wall to the valley below
him. Then, after a short delay, his climbing partner, who is 11.8 m
higher on the wall, throws a piton downward. The positions y of the
pitons versus t during the falling are given in the figure. With
what speed is the second piton thrown?
0 t (s)
At time t = 0, a rock climber accidentally allows a piton to fall freely from...
At time t = 0, a rock climber accidentally allows a piton to
fall freely from a high point on the rock wall to the valley below
him. Then, after a short delay, his climbing partner, who is 11.8 m
higher on the wall, throws a piton downward. The positions y of the
pitons versus t during the falling are given in the figure. With
what speed is the second piton thrown?
0 t (s)
In outer space rock 1, with mass 7 kg and velocity < 3700, -3200, 3200 >...
In outer space rock 1, with mass 7 kg and velocity < 3700, -3200, 3200 > m/s, struck rock 2, which was at rest. After the collision, rock 1's velocity is < 3300-2700, 3700 > m/s. What is the final momentum of rock 2? f2f = kg. m/s Before the collision, what was the kinetic energy of rock 1? K11 = 3 Before the collision, what was the kinetic energy of rock 2? K2i = 0 After the collision, what...
In outer space rock 1, with mass 8 kg and velocity < 3600, -2900, 2800 >...
In outer space rock 1, with mass 8 kg and velocity < 3600, -2900, 2800 > m/s, struck rock 2, which was at rest. After the collision, rock 1's velocity is <3400, -2100, 3200 > m/s. What is the final momentum of rock 2? Por = kg. m/s Before the collision, what was the kinetic energy of rock 1? Kui = Before the collision, what was the kinetic energy of rock 2? K2i = 0 After the collision, what is...
In outer space rock 1, with mass 8 kg and velocity < 3300, -3000, 2400 >...
In outer space rock 1, with mass 8 kg and velocity < 3300, -3000, 2400 > m/s, struck rock 2, which was at rest. After the collision, rock 1's velocity is < 2800, -2400, 2700 > m/s. What is the final momentum of rock 2? 7 28 = kg · m/s Before the collision, what was the kinetic energy of rock 1? Kui = Before the collision, what was the kinetic energy of rock 2? K2i = After the collision,...
IV H Figure A A y Figure B Figure C A rock is dropped from the...
IV H Figure A A y Figure B Figure C A rock is dropped from the top of a tall tower. Half a second later another rock, twice as massive as the first, is dropped. Ignoring air resistance, Which of the following statement is correct? the acceleration is greater for the more massive rock they strike the ground more than half a second apart. they strike the ground with the same kinetic energy the distance between the rocks increases while...
will it go? * 31 A rock is dropped from a treetop 19.6 m high, and...
will it go? * 31 A rock is dropped from a treetop 19.6 m high, and then, 1.00 s later, a second rock is thrown down. With what initial velocity must the second rock be thrown if it is to reach the ground at the same time as the first?
A rock with a mass of 3.80 kg is moving with velocity (6.609 - 1.409) m/s....
A rock with a mass of 3.80 kg is moving with velocity (6.609 - 1.409) m/s. (HINT: v2 = v.v.) (a) What is the rock's kinetic energy (in )) at this velocity? 86.48 (b) Find the net work (in )) on the rock if its velocity changes to (8.00î + 4.00)) m/s. 25.41 x Find the square of the velocity using the hint given, and then use the definition of kinetic energy to calculate the new kinetic energy. The change...
Find the initial potential and kinetic energy of a 5kg rock that falls from a height of 300 km above the earth's surface, if its initial speed is 400 m/s. (Do not use the PE = mgh approximation.)
At time t = 0, a rock climber accidentally allows a piton to
fall freely from a high point on the rock wall to the valley below
him. Then, after a short delay, his climbing partner, who is 11.8 m
higher on the wall, throws a piton downward. The positions y of the
pitons versus t during the falling are given in the figure. With
what speed is the second piton thrown?
0 t (s)
At time t = 0, a rock climber accidentally allows a piton to
fall freely from a high point on the rock wall to the valley below
him. Then, after a short delay, his climbing partner, who is 11.8 m
higher on the wall, throws a piton downward. The positions y of the
pitons versus t during the falling are given in the figure. With
what speed is the second piton thrown?
0 t (s)
In outer space rock 1, with mass 7 kg and velocity < 3700, -3200, 3200 > m/s, struck rock 2, which was at rest. After the collision, rock 1's velocity is < 3300-2700, 3700 > m/s. What is the final momentum of rock 2? f2f = kg. m/s Before the collision, what was the kinetic energy of rock 1? K11 = 3 Before the collision, what was the kinetic energy of rock 2? K2i = 0 After the collision, what...
In outer space rock 1, with mass 8 kg and velocity < 3600, -2900, 2800 > m/s, struck rock 2, which was at rest. After the collision, rock 1's velocity is <3400, -2100, 3200 > m/s. What is the final momentum of rock 2? Por = kg. m/s Before the collision, what was the kinetic energy of rock 1? Kui = Before the collision, what was the kinetic energy of rock 2? K2i = 0 After the collision, what is...
In outer space rock 1, with mass 8 kg and velocity < 3300, -3000, 2400 > m/s, struck rock 2, which was at rest. After the collision, rock 1's velocity is < 2800, -2400, 2700 > m/s. What is the final momentum of rock 2? 7 28 = kg · m/s Before the collision, what was the kinetic energy of rock 1? Kui = Before the collision, what was the kinetic energy of rock 2? K2i = After the collision,...
IV H Figure A A y Figure B Figure C A rock is dropped from the top of a tall tower. Half a second later another rock, twice as massive as the first, is dropped. Ignoring air resistance, Which of the following statement is correct? the acceleration is greater for the more massive rock they strike the ground more than half a second apart. they strike the ground with the same kinetic energy the distance between the rocks increases while...
will it go? * 31 A rock is dropped from a treetop 19.6 m high, and then, 1.00 s later, a second rock is thrown down. With what initial velocity must the second rock be thrown if it is to reach the ground at the same time as the first?
A rock with a mass of 3.80 kg is moving with velocity (6.609 - 1.409) m/s. (HINT: v2 = v.v.) (a) What is the rock's kinetic energy (in )) at this velocity? 86.48 (b) Find the net work (in )) on the rock if its velocity changes to (8.00î + 4.00)) m/s. 25.41 x Find the square of the velocity using the hint given, and then use the definition of kinetic energy to calculate the new kinetic energy. The change...
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