# science

a runner training for a race times her 400 meter laps around a track. her times are lap 1 60 seconds, lap 2 57 seconds, lap 3 55 seconds and lap 4 53 seconds. what is her avaerage velocity in meters per second (m/s)?

1. 👍 0
2. 👎 0
3. 👁 941
1. Divide 1600 meters (the total 4 lap distance run) by the total number of seconds.

The total time is 60 + 57 + 55 + 53 = ___ seconds

1. 👍 0
2. 👎 1
2. the question is asking for the average of her times, so to find your average you add all times
60+57+55+53= 225, then you divide by the number of laps she ran = 4
225/4= 56.25 m/s
Simply

1. 👍 1
2. 👎 1

## Similar Questions

1. ### mathematics

A circular race track is being built. The outsidediameter of the track is 200 feet, and the inside diameter is 180 feet. If two runners run around the track once, with one of them running on the outside edge of the track, while

2. ### physical science

On the question...a runner completes exactly 2 laps around a 400 meter track...what is the distance and what is the displacement? Would it be...800m for distance and 0m for displacement? Thanks...

3. ### science

A runner completes one full lap around a 400 meter track. What is her displacement?

4. ### Physics

Running on a treadmill is slightly easier than running outside because there is no drag force to work against. Suppose a 60 kg runner completes a 5.0 km race in 19 minutes. Part A Determine the drag force on the runner during the

1. ### physics

1.Moving with uniform acceleration a body covers 150m during 10sec so thet it covers 24m during the 10th sec .What is the initial velocity and the acceleration of the body. 2.A runner travels 1.5 laps around a circular track of

2. ### stats

Which of the following variables for data about a track team is a discrete variable? C would be the discrete variable?? The height of a team member A The weight of a team member B The number of times that a team member finished

3. ### English

Which sentence describes a race car using onomatopoeia? A. The sweet car went around the track quickly. B. The rapid race car drove around the track. C. The fast car traveled around the roadway D. The sleek, powerful race car

4. ### math

Ben, Ray, and Lee ran laps around the school track. Ben ran 2 times as many laps as Ray. Lee ran 3 laps, which is one-half of the number of laps that Ray ran. How many laps did Ben run?

1. ### math

Courtney is supposed to run laps around the outdoor track. At the start of each lap, however (even the first), there is always an 8 percent chance that Courtney will call it quits for the day. What is the probability that today

2. ### Math

one track coach wants his athletes to race 8 miles around a track to measure how fast each person can run if the track is 2/3 of a mile around. How many laps around the track will the athletes have to run to complete the race?

3. ### phyics

Suppose a runner completes one lap around a 400-m track in a time of 50 s. Calculate the average velocity of the runner. Express your answer in meters per second to the nearest integer.

4. ### physic

A race car travels 950 km around a circular sprint track of radius 1.343 km. How many times did it go around the track?