Acrate is pushed up each of the two ramps shown in the diagram below. based on the concept that simple machines make work easier, and assuming that both ramps are friction less, which statement is true?

ramp b requires less force than ramp a.

ramp a requires less force than ramp b.

ramp b raises the crate higher than ramp a.

ramp a raises the crate higher than ramp b.

false br

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.

total distance/total time

(85 + 82)/(5+3)

167/8

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