A6.0-kg cube slides down a friction free hill from point a to point b. after the cube passes point b, a friction force opposes the motion of the block so that it comes to a stop 2.5 m from b. calculate the coefficient of kinetic friction between the cube and the surface after position b.

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19

i already answered it by 34/s

did yall get answers for this yet