Posted by Kristina on Friday, October 2, 2009 at 4:47pm.
A golfer rides in a golf cart at an average speed of 3.10 m/s for 21.0 s. She then gets out of the cart and starts walking at an average speed of 1.60 m/s. For how long (in seconds) must she walk if her average speed for the entire trip, riding and walking, is 2.10 m/s?

Physics  drwls, Friday, October 2, 2009 at 4:50pm
Require that
2.10 (T+21) = 3.1*21 + 1.6*T
= (total distance travelled)
Then solve for T, which will be in seconds.

Physics  Kristina, Friday, October 2, 2009 at 4:54pm
I need help solving for T!!!

Physics  bobpursley, Friday, October 2, 2009 at 5:03pm
2.10(T+21)=3.1*21+1.6T
What kind of help do you need in solving for T?

Physics  drwls, Friday, October 2, 2009 at 5:05pm
2.1T + 44.1 = 65.1 + 1.6 T
0.5 T = 21
Can you complete the solution?
One should learn algebra before studying physics
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