Name: Due Date: Period UNIT 4: WS 9 Friction & Inclines 1. A sled with a mass of 25.5 kg is slid across a snowy surface with a resulting acceleration of 2.15 m/s2. a. If the frictional force is 10.7 N, what is the coefficient of friction? b. If F = ma, what force is required to push the sled at this rate and under these conditions? 2. Assume the motion of the system to be described by the graph on the right. Use your understanding of Newtons 1st Law, vector components, and graphical models to a. Fill in the blanks in the following diagram b. Determine the net force and acceleration of the 10 kg object. Yel (m/s) Fnet = ma Form= F =70 N Ffrict = MFnorm /450 Ffrict = Fgrav = mg 10 kg - Time (s) Fgray =