Answer to Question #342573 in Physics for Nel

Question #342573

What horizontal force P can be applied to a 100-kg block in a level surface with coefficient of friction of 0.2, that will cause and acceleration of 2.50 m/s2?

Expert's answer

"ma=F-F_f\\\\\nma=F-\\mu mg"

"F=m(a+\\mu g)\\\\\n={100\\:\\rm kg*(2.50\\:\\ m\/s^2+0.2*9.8\\:m \/s^2)}\\\\\n=446\\:\\rm N"

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