A33.0 kg child named lindsey runs as fast as she can and jumps onto the outer edge of a merry-go-round. the merry-go-round is initially at rest and has a mass of 78.0 kg and a radius of 2.20 m . lindsey's linear velocity was 9.00 m/s at the moment she jumped onto the merry-go-round. what is the initial angular momentum of the system?

What is the kinetic energy of a baseball moving at a speed of 40 m/s if the baseball has mass of 0.15 kg?

The path of a satellite orbiting the earth causes it to pass directly over two tracking stations a and b, which are 51 miles apart. when the satellite is on one side of the two stations, the angles of elevation at a and b are measured to be 87 degrees and 84 degrees, respectively. (a) how far is the satellite from station a? (b) how high is the satellite above the ground?

If you held a stone over the mouth of a well and then let it go , what would happen to the stone? explain your answer.