Which describes an object in projectile motion? Gravity acts to push the object sideways. The object moves in a straight path. The forward velocity of the object is 0 m/s. The object’s inertia carries it forward.

at positions a, g kinetic energy is maximum.

at position d, potential energy is maximum.

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement

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

it is a negative acceleration