How Much Force to Overcome Static Friction and Move a Sled?

AI Thread Summary
To overcome static friction and move a sled with a mass of 50 kg on flat, snow-covered ground, a force must be applied that exceeds the product of the sled's weight and the static friction coefficient. The calculated weight of the sled is 490N, and with a static friction coefficient of 0.30, the force required to start moving the sled is 147N. Understanding the difference between static and sliding friction is crucial, as the sliding friction coefficient is lower at 0.10. The discussion highlights the importance of grasping these concepts for solving related physics problems effectively. Overall, a clear comprehension of static friction is essential for accurately determining the force needed to initiate movement.
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First time posting here. . .
Okay, usually I'm pretty good figuring these type of questions out, but the textbook just doesn't help(no e.g.'s or explanations) and the teacher didn't talk at all about static friction, so, if anyone could give me a hand, I'd be very grateful.
Question:
A sled of mass 50 kg is pulled along snow-covered, flat ground. The static friction coefficient is 0.30 and the sliding friction coefficient is 0.10
b)What force will be needed to start the sled moving?

(Calculated weight is 490N)
 
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I'm not looking for instant answers, I really need this explained. I absolutely hate having only partial knowledge of a concept...it always messes you up in the end.
 
Okay...I THINK I have it. For some reason my brain is not grasping this concept as readily as it should. Perhaps I just need to pound it in a little more. :) Thanks for your help!
 

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