A sled with a mass 53.0 kg is pulled along flat, snow-covered ground. the static friction coefficient is 0.30, and the kinetic friction coefficient is 0.10. (a) what does the sled weigh? 519.75245151792 n (b) what force will be needed to start the sled moving? n (c) what force is needed to keep the sled moving at a constant velocity? n (d) once moving, what total force must be applied to the sled to accelerate it at 2.6 m/s2? n
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