A 20-kg child sits on a 5-kg sled and slides down a 125-meter, 31-degree slope, to the nearest m/s what is his or her speed at the bottom?© BrainMass Inc. brainmass.com March 4, 2021, 6:33 pm ad1c9bdddf
The total mass of the child + sled = 25 Kg, we will consider this as a single mass. The only force acting on the mass when it is at the top of the slope is the force due to gravity which is equal to
F = mg
This acts vertically downwards.
The solution gives all mathematical steps. Newton's law of motion for sliding down a slope is determined.