I ran the 400 m dash while I was at school. My fastest time was 54 seconds. I hit my top speed on the final straight-- heading north on the track towards the finish line. What was my velocity at this portion of my race?

To a of 4 x hz is 1. 0. mm nm nm

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.

Which word expression describes how much to calculate pressure