I bought a new gas lawn mower the other day. This new mower mows faster than the old electric (environmental) one. Why, you ask? It is because the old mower cut a 21 inch path, while the new one cuts a 22 inch path. So how much time did I save? Look at some facts. My lawn is a rectangle measuring 150 feet by 105 feet I mow the lawn in strips and always in the same direction (length or width) My walking speed is 120 feet/minute It takes 5 seconds to turn around after each strip How much time did I save if I mow back and forth along the width or if I mow back and forth along the length? Pick one and figure it out. My neighbor does not like minutes the noise it makes, but I do! 15750 120= 131.25 Wiatlo

I bought a new gas lawn mower the other day. This new mower mows faster than the old electric (environmental) one. Why, you ask? It is because the old mower cut a 21 inch path, while the new one cuts a 22 inch path. So how much time did I save? Look at some facts. My lawn is a rectangle measuring 150 feet by 105 feet I mow the lawn in strips and always in the same direction (length or width) My walking speed is 120 feet/minute It takes 5 seconds to turn around after each strip How much time did I save if I mow back and forth along the width or if I mow back and forth along the length? Pick one and figure it out. My neighbor does not like minutes the noise it makes, but I do! 15750 120= 131.25 Wiatlo

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter2: One Dimensional Motion

Section: Chapter Questions

Problem 71PQ: The electrical impulse initiated by the nerves in Linas hand, signaling she has touched a hot stove,...

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Question

See pic and help !

84
MY NEW LAWN MOWER
I bought a new gas lawn mower the other day. This new mower mows faster than
the old electric (environmental) one. Why, you ask? It is because the old mower
cut a 21 inch path, while the new one cuts a 22 inch path. So how much time did I
save? Look at some facts.
My lawn is a rectangle measuring 150 feet by 105 feet
I mow the lawn in strips and always in the same direction (length or width)
My walking speed is 120 feet/minute
It takes 5 seconds to turn around after each strip
How much time did I save if I mow back and forth along the width or if I mow back
and forth along the length? Pick one and figure it out. My neighbor does not like
minutes
the noise it makes, but I do! 15750-120=131.25
Width :

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