Physics, 03.12.2019 17:31 fseftrwer2522
A500 kg horse can provide a steady output power of 750 w (that is, 1 horsepower) when pulling a load; how about a 38 kg sled dog? data shows that a 38 kg dog can pull a sled that requires a pulling force of 60 n at a steady 2.2 m/s.
1. what is the specific power for the dog and the horse?
2. what is the minimum number of dogs needed to provide the same power as one horse?
Answers: 2
= Mass of dog = 38 kg
= Pulling speed of dog = 2.2 m/s
= Force on sled = 60 N
= Power of horse = 750 W
= Mass of horse = 500 kg
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A500 kg horse can provide a steady output power of 750 w (that is, 1 horsepower) when pulling a load...
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