Two students are pushing identical crates across a frictionless floor. the crates are initially at rest. bing applies a horizontal force of 23 n to his crate. bob, who is shorter than bing, pushes on his crate at an angle of 33° below the horizontal, also with a force of 23 n. find the ratio of the masses of the two crates if bing’s crate is moving at twice the speed of bob’s crate after they have traveled a distance of 33.5 m across the floor?