A sled of mass 50.0 kg is pulled along flat, snow-coveredground. The static friction coefficient is 0.30, and the kineticfriction coefficient is 0.10. a. What does the sled weigh? b. What force will be needed to start the sled moving? c. What force is needed to keep the sled moving at a constantvelocity? d. Once moving, what total force must be applied to sled toaccelerate it at 3.0 m/s squared? A sled of mass 50.0 kg is pulled along flat, snow-coveredground. The static friction coefficient is 0.30, and the kineticfriction coefficient is 0.10. a. What does the sled weigh? b. What force will be needed to start the sled moving? c. What force is needed to keep the sled moving at a constantvelocity? d. Once moving, what total force must be applied to sled toaccelerate it at 3.0 m/s squared?