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 one year ago
A swimmer travels from the south end to the north end of a 30.0 m pool in 15.0 s and makes the return trip to the starting position in 19.0 s. What is the average velocity for the roundtrip?
a.
2.50 m/s to the south
c.
2.50 m/s to the north
b.
2.27 m/s to the north
d.
0.0 m/s
 one year ago
A swimmer travels from the south end to the north end of a 30.0 m pool in 15.0 s and makes the return trip to the starting position in 19.0 s. What is the average velocity for the roundtrip? a. 2.50 m/s to the south c. 2.50 m/s to the north b. 2.27 m/s to the north d. 0.0 m/s

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cwrw238
 one year ago
Best ResponseYou've already chosen the best response.3average velocity = total distance travelled  total time taken

undertakeriivv
 one year ago
Best ResponseYou've already chosen the best response.0ok uh velocity = distance/time x = 30/15 x = 30/19

cwrw238
 one year ago
Best ResponseYou've already chosen the best response.3total distance = 2*30 meters total time = 15 + 19 seconds

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Velocity = (final distance  initial distance)/time =(00)/(15+19) =0

cwrw238
 one year ago
Best ResponseYou've already chosen the best response.3strictly speaking , in classical mechanics the formula i gave you is for the average SPEED which is independent of the direction, whereas velocity has both speed and direction.

WebsWeWeave
 one year ago
Best ResponseYou've already chosen the best response.0@mathmate Joe is on a crosscountry trip from New York to Los Angeles. He drives for 45.0 min at 70.0 km/h, 10.0 min at 95 km/h, and 30.0 min at 55.0 km/h, and he spends 20.0 min eating lunch and buying gas. What is the average speed for this part of his trip? a. 67.6 km/h c. 54.7 km/h b. 68.4 km/h d. 53.8 km/h

WebsWeWeave
 one year ago
Best ResponseYou've already chosen the best response.0@patdistheman Two cars drive in the same direction along a straight road, at a constant speed  one at 70 km/hr and the other at 80 km/hr. Assuming that they start at the same point and at the same time, how much sooner would the faster car arrive at a destination 460 km away? a. 49 minutes c. 5.75 hrs b. 6.6 hrs d. 741 minutes

patdistheman
 one year ago
Best ResponseYou've already chosen the best response.0I do not see how this can be 0. A swimmer travels from the south end to the north end of a 30.0 m pool in 15.0 s and makes the return trip to the starting position in 19.0 s. What is the average velocity for the roundtrip? a. 2.50 m/s to the south c. 2.50 m/s to the north b. 2.27 m/s to the north d. 0.0 m/s

WebsWeWeave
 one year ago
Best ResponseYou've already chosen the best response.0is it c @patdistheman

patdistheman
 one year ago
Best ResponseYou've already chosen the best response.0A total distance of 60 meters is traveled in 34 seconds it would seem the average velocity would be (60/34) = 1.765 m/s.

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1@mathmate Joe is on a crosscountry trip from New York to Los Angeles. He drives for 45.0 min at 70.0 km/h, 10.0 min at 95 km/h, and 30.0 min at 55.0 km/h, and he spends 20.0 min eating lunch and buying gas. What is the average speed for this part of his trip? a. 67.6 km/h c. 54.7 km/h b. 68.4 km/h d. 53.8 km/h What you would do is to tabulate the time and distances. dw:1357264764179:dw Average speed = total distance/total time = 95.8333/1.75 hr. = 54.76 km/hr
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