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A rock of mass 50kg

A boy drops a 0.50kg rock from a 22m high bridge into a river below.a) Using the river as a reference point, what is the initial
1. 1 answer
2. 77 views
Blocks A A (mass 6.50kg kg ) and B B (mass 10.50kg kg ) move on a frictionless, horizontal surface. Initially, block B B is at
1. 1 answer
2. asked by josh
3. 843 views
a 50kg object is suspended by a rope over a pulley which is connected to a large mass of 61.3kg. The mass rests on a 30 degree
1. 3 answers
2. asked by Anonymous
3. 706 views
A boy drops a 0.50kg rock from a 22m bridge into the river . What is the final speed of the rock just before it hits the water ?
1. 1 answer
2. 68 views
Block B has a mass of 4.50kg and is moving to the left at a speed of 4.50m/s. Block A has a mass of 6.50kg and is moving to the
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2. asked by Ashley
3. 774 views
A spring with a force constant of 5000N/m and a rest length of 3m is used in a catapult. When compressed to 1m, it is used to
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2. asked by Anonymous
3. 819 views
Pablo wanted to find the density of a rock. He found the mass of the rock. He then found the volume of the rock by adding the
1. 1 answer
2. 23 views
Use the table of data for two falling rocks to answer the questions.Mass (kg) : rock 1: 2.5. Rock 2: 25. Height of fall (m) :
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2. 118 views
A CRATE OF MESS 50KG IS LYING ON A 30DEGREE INCLINE, A STEEL BALL OF MASS 20KG IS ATTACHED TO THE CRATE WITH A ROPE.THE ROPE IS
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2. asked by MORENA
3. 1,174 views
A rock of mass 50kg is held at 45meter from the ground.it is allowed to fall freely.find the change in potential energy,when it
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2. asked by Anonymous
3. 461 views