Forces: You discover that it takes 258.0 N to set a 40.0 kg crate in motion on a concrete surface. What is the coefficient of static friction for the crate?
@ swin u need to know what plane u are working on is it an incline plane or an horizontal plane/
coefficient of static friction=static frictional force/ normal rection
I assume the plane is horizontal: the normal reaction=weight=mg ur
got it buddy?
@hubertH it doesn't say. so i assumed it was horrizontal
so u knw how to get to the answer right?
but is static friction only involved in inclined plane?
No.. then I wouldn't be asking lol
No! static friction is the force required to set the body in motion in our case it 's given as 258.0N
Well they're asking from the coefficient of static friction?
coefficient of static friction=static friction force/normal reaction
for horizontal plane normal reaction=mg
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