A sled of 6.0 kg mass is moving along a smooth, horizontal ice surface with a velocity of X. A force of 36N is applied to the sled in its direction of motion, increasing its velocity to 2X while it moves 10m. Find the sled's original velocity, x. And the length of time that the force acted. Smooth surface means frictionless, and the answers should be 6.3m/s and 1.1 sec respectively. Thanks.