The question is:(adsbygoogle = window.adsbygoogle || []).push({});

A person takes a trip, driving with a constant speed 89.7 km/h except for a 21.5 min rest stop.

If the person's average speed is 70.9 km/h, how far is the trip? Answer in units of km.

I haven't done this kind of thing for years!! and I was just wondering if I solved it properly.. here is what i came up with.....

time = 89.7 x (t - 21.5/60) = 70.9, 89.7 t - 38.5 = 70.9 t, t = 2.70 h

distance = 70.9 x 2.70 = 191.43 km

Is that right? Any help would be greatly appreciated.

Thanks

**Physics Forums - The Fusion of Science and Community**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Anyone Know How To Solve This Problem?

Loading...

Similar Threads - Anyone Solve Problem | Date |
---|---|

B Has anyone seen this logarithmic spiral creation before? | Jan 30, 2018 |

Anyone remember how to solve 0^0? | Jul 27, 2012 |

Can anyone solve this? | Sep 21, 2005 |

Can anyone solve this equation? | Jan 24, 2005 |

Can anyone solve this equation? | Jan 14, 2004 |

**Physics Forums - The Fusion of Science and Community**