Sunday

March 1, 2015

March 1, 2015

Posted by **nate** on Thursday, September 27, 2012 at 12:49pm.

- physics -
**Henry**, Friday, September 28, 2012 at 6:19pmWl = mg = 188kg * 9.8N/kg = 1842 N. =

Wt. of Log.

Fl = 1842N @ 30o =Force of Log.

Fp = 1842*sin30 = 921 N.=Force parallel to hill.

Fv = 1842*cos30 = 1595 N. = Force perpendicular to the hill.

Fk = u*Fv = 0.9*1595 = 1436 N = Force of kinetic friction.

Fn = Fap-Fp-Fk = m*a.

Fap-921-1436 = 188*0.74

Fap-2357 = 139

Fap = 139+2357 = 2496 N.=Force applied.

= Strength of rope.

**Answer this Question**

**Related Questions**

physics-intensity - The intensity of a certain sound wave is 6 ì W.cm2. if its ...

geometry - A log cabin is shaped like a rectangular prism. A model of the cabin ...

math - A log cabin in the shape of a rectangular prism is modeled using a scale ...

LOGARITHMS - HI THE QUESTION STATES THAT ONE SHOULD CALCULATE THE LOGS WITHOUT ...

algebra - solve 4^3x-4=32^x+2 Please help! Do you mean 4^(3x) -4 = 32^x +2 ? yes...

Pre Cal (logs) - I need help with these logs 1: Log underscore4 16X 2: 2 Ln ( X(...

Trigonometry - This is a logs question If u=x/y^2, which expression is ...

physics - A student is attempting to haul a 500 kg log down a 24 degree hill. ...

mathematics -logs - which three statements are true? a) if x= -10^4 then log 10...

Math-LOGS - Express x in terms of a,b and c. log x = 1/2 (log a + log b - log c...