Chapter 2, Problem 3Q

A turtle and a rabbit engage in a footrace over a distance of 4.00 km. The rabbit runs 0.500 km and then stops for a 90.0-min nap. Upon awakening, he remembers the race and runs twice as fast. Finishing the course in a total time of 1.75 h, the rabbit wins the race. (a) Calculate the average speed of the rabbit. (b) What was his average speed before he stopped for a nap? Assume no detours or doubling back. step by step

Jack and Jill exercise in a 25.0 m long swimming pool. Jack swims 9 lengths of the pool in 146.7 s (2 min and 26.7 s), whereas - Jill, the faster swimmer, covers 10 lengths in the same time interval. Find the average velocity and average speed of each swimmer. Jack's average velocity: Jack's average speed: Jill's average velocity: Jill's average speed: MacBook Pro m/s m/s m/s m/s

In sports, the “hang time” of a player is the amount of time a player spends in the air after jumping. Most professional athletes can jump to a maximum height of 0.60 m from the ground. Use a = 9.80 m/s2 and the fact that the velocity of an object at the maximum height is 0.   1.The "hang time" is defined as the time it takes to fall from the maximum height, multiplied by 2. Find the hang time of the athlete.     2. What is the speed of the player just before they hit the ground? Express your answer in m/s and in mph.

A runner practices along a straight line 2000 m long, running back and forth until she returns to the starting point of the course. With the information provided we can ensure when considering the entire route (outbound trip plus return trip): a) During the tour he had a positive average speed, but there is not enough infotmation to infer something about his average speed. b) During the tour he had a positive average speed and his average speed was zero. c) During the trip he had an average speed equal to zero and his average speed was positive. d). We need to know the time it took the runner back and forth to be able to infer something about her average speed and average speed.

A person walks first at a constant speed of 4.90 m/s along a straight line from point O to point O and then back along the line from to at a constant speed of 3.20 m/s. (a) What is her average speed over the entire trip? m/s (b) What is her average velocity over the entire trip? m/s

A person walks first at a constant speed of 5.50 m/s along a straight line from point A to point B and then back along the line from B to A at a constant speed of 3. What is her average speed over the entire trip. (In m/s)

A sky diver jumps from a "perfectly good" plane. Prior to opening their parachute they fell 625 m in 12.5 s, and after opening their parachute they fell an additional 325 m in 125 s. (a) What is their average velocity prior to opening the parachute? (b) What is their average velocity with the parachute opened? (c) What is the average velocity for the entire motion?

(Figure 1) shows the position-versus-time graph for a moving object. Figure X 1 2 3 5 6 1 of 1 Part A At which numbered point or points is the object moving the fastest? Check all that apply. Point 1 Point 2 Point 3 U Point 4 Point 5 Point 6 Submit Part B At which numbered point or points is the object moving to the left, if the positive x-direction corresponds to its rightward movement? Check all that apply. Point 1 Point 2 Point 3 Point 4 Point 5 Request Answer Point 6

A turtle and a rabbit engage in a footrace over a distance of  4km. The rabbit runs  0.5km and then stops for a 90-min nap. Upon awakening, he remembers the race and runs twice as fast. Finishing the course in a total time of  1.75h, the rabbit wins the race. Calculate the average speed of the rabbit