"an empty cylindrical barrel is open at one end and rolls without slipping straight down a hill. the barrel has a mass of 19.0 kg,19.0 kg, a radius of 0.260 m,0.260 m, and a length of 0.650 m.0.650 m. the mass of the end of the barrel equals a fifth of the mass of its side, and the thickness of the barrel is negligible. the acceleration due to gravity is

the acceleration due to gravity, g of the cylinder is 9.81m/s2

Explanation:

since the cylinder is rolling down from a hill, the acceleration due to gravity of any object coming down from the atmosphere is always constant which is g=9.8m/s2 or approximately 10m/s2

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