Asked by hailey

Skye is trying to make her 70 kg St. Bernard go out the back door but the dog refuses to walk. If the coefficient of sliding fricction between the dog and the floor is .5, how hard must skye push in order to move the dog with a constant speed?

please explain!

Answers

Answered by drwls
To achieve a constant speed, the friction force must equal the applied force, since that they cancel out.

The friction force is M g * (0.5)
= 343 Newtons

Answered by hailey
thanks!
Answered by rglegrieh
thx
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