Which type of friction prevents a pile of rocks from falling apart?
2 answers:
Static friction because the rocks arent moving are they?
It is NOT Cohesive Friction, I just took the quiz. I believe it is the other answer.
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Acceleration = force/mass
1/4
s=ut+1/2at^2
0*4+1/2*1/4*4^2
1/2*1/4*16
1/2*4
=2
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Answer:
speed = 20 m/s
Explanation:
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