# physics

Carl Lewis set a world record for the 100.0-m run with a time of 9.86 s. If after reaching the finish line, Mr. Lewis walked directly back to his starting point in 90.9 s, what is the magnitude of his average velocity for the 200.0m?

1. 👍
2. 👎
3. 👁
1. 100/9.86 with give you his velocity running.

100/90.9 will give you his velocity walking.

Average the two to get his average velocity in m/sec for the 200 m.

1. 👍
2. 👎
2. 100/9.86= 10.14
100/90.9=1.1
(10.14+1.1)/2= 5.62m/s

1. 👍
2. 👎

## Similar Questions

1. ### MATH

The odds in favor of Carl beating his friend in a round of golf are 7 : 4. Find the probability that Carl will lose. would the answer be 7/11?

2. ### chemistry

In the reaction CaO(s) + SO2(g) ---> CaSO3(s) (Hint: try drawing the Lewis structures of SO2 and SO32-) a. ) Ca2+ acts as a Lewis base, and SO32- acts as a Lewis acid. b. ) SO32- acts as a Lewis base, and SO2 acts as a Lewis acid.

3. ### physics

The froghopper, Philaenus spumarius, holds the world record for insect jumps. When leaping at an angle of 58.0 degrees above the horizontal, some of the tiny critters have reached a maximum height of 58.7 cm above the level

4. ### math

Weights of the vegetables in a field are normally distributed. From a sample Carl Cornfield determines the mean weight of a box of vegetables to be 180 oz. with a standard deviation of 8 oz. He wonders what percent of the

1. ### Organic chem

Classify each as a lewis acid or lewis base... A)H20 B)O2- C)Cu2+ D)SO3 E)AlCl3 Lewis acids are electron pair acceptors. Lewis bases are electron pair donors. Look at H2O, for example. .. H:O: .. H This molecule has no "holes" to

2. ### Physics

In 1926, Johnny Weissmuller set the men’s world 400.0-m swimming record in 4.00 min, 57.0 s. In 1966, Martha Randall set the women’s record in 4.00 min, 38.0 s. By how many meters would Martha have been beaten Johnny if they

3. ### algebra

In 1960, the world record for the men's mile was 3.91 minutes. In 1980, the record time was 3.81 minutes. a. Write a linear model that represents the world record (in minutes) for the men's mile as a function of the number of

4. ### Math

Patty and Carl went to the movies.Patty bought the two movie tickets for $7.35 each.Carl bougjt two bucket of popcorn at$5.60 each.How much more money did Patty spend than Carl.

1. ### Math

3. A processor makes two components, A and B, which are then packaged together as the final product (each product sold contains one A and one B). The processor can do only one component at a time: either it can make As or it can

2. ### Chemistry

Identify the true statement about Lewis structures. Select all the correct answers. 1. Hydrogen is usually surrounded by 4 electrons in a valid Lewis structure. 2. A single bond in a Lewis structure represents 2 electrons. 3. A

3. ### physics

The longest distance in a track and field event is the 10 km run. The record holder for the women's 10 km run is Wang Junxia of China. Assuming that Wang Junxia ran a distance of 10.00 km with an average speed of 5.644 m/s, what

4. ### CHEM LAB

Carl Lewis, a sprinter in the 1988 Olympic Games, ran the 100.0 meter dash in 9.92 s. What was his speed in feet per second (ft/s) ? [a] ft/s Hint: start with LaTeX: \frac{100.0\:m}{9.92s}100.0 m 9.92 sand change meters to feet.