# Physics

A person runs 800. m at an average speed of 6.00 m/s and then the next 800. m at an average speed of 8.00 m/s.
Calculate (a) the total time of travel and b) the average speed.

1. 👍 0
2. 👎 0
3. 👁 249
1. T1 = d1/r1 = 800/6 = 133.3 s.

T2 = d2/r2 = 800/8 = 100 s.

a. T1+T2 = 133.3 + 100 = 233.3 s.=Total
time of travel.

b. r = d/T = 1600m/233.3s = 6.86 m/s.

1. 👍 0
2. 👎 0
posted by Henry

## Similar Questions

1. ### Physics

1. A person runs 800. m at an average speed of 6.00 m/s and then the next 800. m at an average speed of 8.00 m/s. Calculate (a) the total time of travel and (b) the average speed. 2. A boy kicked a can horizontally from a 6.5 m

asked by Piper on June 18, 2014
2. ### Physics

1. A person runs 800. m at an average speed of 6.00 m/s and then the next 800. m at an average speed of 8.00 m/s. Calculate (a) the total time of travel and (b) the average speed. 2. Sam travels by car from one city to another. He

3. ### Physics

Alaskan moose can be as massive as 800 kg. Suppose two feuding moose, both of which have a mass of 800 kg, back away and then run toward each other. If one of them runs to the left with a speed of 6.0 m/s, and the other runs to

asked by Amy on November 23, 2011
4. ### Science Help Not sure

Within the Gaetz Lake Sanctuary in Red Deer, Alberta, is a looped trail that is 4 km long. Suppose a person walked all the way around the looped trail in 1 h, ending where he or she started. Which statement best describes this

asked by Emmanuel on July 4, 2015
5. ### physics

A person is to run a circular track with a radius of 93 meters. The person starts at a certain spot and runs 3 and 1/2 times around the track in a time of 227 seconds. Find the magnitude of average velocity for this trip (|vav|)

asked by Jeff on September 1, 2011
1. ### physics

A person is to run a circular track with a radius of 93 meters. The person starts at a certain spot and runs 3 and 1/2 times around the track in a time of 227 seconds. Find the magnitude of average velocity for this trip (|vav|)

asked by Marc on September 3, 2011
2. ### physics

A dog runs 150{\rm m} away from its master in a straight line in 8.4{\rm s} , and then runs halfway back in one-third the time.Calculate its average speed,average velocity?

asked by tony on October 7, 2012
3. ### Math

in a triathlon , an athlete swims 750m in 15 minutes, cycles at an average speed of 40km/h for 30 minutes and runs 5 km at an average speed of 3m/s . find his average speed for the entire competition giving your answer in km/h

asked by Marine on October 13, 2019
4. ### math

In a triathlon, Farhan swims a distance of 1.5 km at an average speed of 2.5 km/h, cycles 40 km in 1/1/2 hours and runs at an average speed of 9 km/h for 1/1/9 hours. Find his average speed for the entire competition