Jack and jill are standing on a crate at rest on the frictionless, horizontal surface of a frozen pon
d. jack has mass 75.0 kg, jill has mass 45.0 kg, and the crate has mass 15.0 kg. they remember that they must fetch a pail of water, so each jumps horizontally from the top of the crat
e. just after each jumps, that person is moving away from the crate with a speed of relative to the crat
e. (
a. what is the final speed of the crate if both jack and jill jump simultaneously and in the same direction