SOLUTION: Anza is training by running to a post across a field and then back. He runs the outward leg at 7m/s and the return leg at 5m/s. He takes 15.4 s. Find the distance to the post
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Question 543175: Anza is training by running to a post across a field and then back. He runs the outward leg at 7m/s and the return leg at 5m/s. He takes 15.4 s. Find the distance to the post Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! Anza is training by running to a post across a field and then back. He runs the outward leg at 7m/s and the return leg at 5m/s. He takes 15.4 s. Find the distance to the post.
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let x=time (sec) it took for outward leg
15.4-x=time (sec) it took for return leg
distance=speed*time (same for both legs)
7x=5(15.4-x)
7x=77-5x
12x=77
x=77/12 sec
distance=7x=7(77/12)≈44.92
ans:
Distance to post≈44.92 m
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