Answer Happy

Posted: **Wed Jul 06, 2022 10:15 am**

: 5 5 Points A Track Runner Takes 90 S To Pass The Finish Line 100 M From The Starting Line They Then Walk Back To The 1 (30.71 KiB) Viewed 12 times

: 5 5 Points A Track Runner Takes 90 S To Pass The Finish Line 100 M From The Starting Line They Then Walk Back To The 2 (26.07 KiB) Viewed 12 times

5. (5 points) A track runner takes 90 s to pass the finish line 100 m from the starting line. They then walk back to the starting line in 200 s. Find the average velocity and average speed of the track runner for the entire motion.. 6. (5 points) An elevator is moving downward with a speed of 5 m/s. Ten seconds later, the elevator is still moving downward but its speed has been increased to 10 m/s. What is the average acceleration of the elevator during the 10 s interval?
7. (5 points) A car is initially traveling at 60 km/h. The brakes are applied and the car decelerates at 4 m/s². How far does the car travel to come to rest? 8. (5 points) A ball is dropped from rest from a tower and strikes the ground after 10s. Approximately what height was the ball dropped from? Neglect air resistance.