You go for a walk near your house. You walk 2 Kilometers to a nearby park. That takes you 30 minutes. You stay at the park for 15 minutes, and jog back home. It takes you 15 minutes to jog home 1. what was your average speed on the way to the park?

2. what was your average speed while you were at the park?

3. what was your average speed on the entire trip?​

Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.