5 points A sled and its rider has a mass of 125kg. The rider wants you to pull the
sled across a park. An applied force by you and of 190N (Fapp) is applied
to the sled and rider. The sled and rider accelerate at a rate of 1.5m/s2.
Calculate the sliding friction (Ff) between the sled and rider and the snow.

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

Aquarterback pedals 3.3meters southward and then run 5.7meters northward. whats the distance ? and whats the displacement?

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.