Amerry-go-round rotates at the rate of
0.28 rev/s with an 84 kg man standing at
a point 2.3 m from the axis of rotation.
what is the new angular speed when the
man walks to a point 0 m from the center?
consider the merry-go-round is a solid 35 kg
cylinder of radius of 2.3 m.
answer in units of rad/s.

Two friends are having a conversation. anna says a satellite in orbit is in freefall because the satellite keeps falling toward earth. tom says a satellite in orbit is not in freefall because the acceleration due to gravity is not 9.80 m/2 . who do you agree with and why?

Arunner is jogging at a steady 3.6 km/hr. when the runner is 2.9 km from the finish line, a bird begins flying from the runner to the finish line at 14.4 km/hr (4 times as fast as the runner). when the bird reaches the finish line, it turns around and flies back to the runner. even though the bird is a dodo, we will assume that it occupies only one point in space, i. e., a zero-length bird. how far does the bird travel? (b) after this first encounter, the bird then turns around and flies from the runner back to the finish line, turns around again and flies back to the runner. the bird repeats the back and forth trips until the runner reaches the finish line. how far does the bird travel from the beginning? (i. e. include the distance traveled to the first encounter)

While the change in blank will remain the same during a collision, the force needed to bring an object to a stop can be blank if the time if collision is blank