- #1

vs55

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## Homework Statement

a)which way does this system go?

b)write force equations

c)find acceleration of the 10kg mass

THE ROPE IS SUPPOSED TO BE ATTACHED TO THE MASS NOT THE RAMP IN THE PICTURE

## Homework Equations

m1 is the 10kg mass..m2 is the 8kg mass

u = coefficient of friction

## The Attempt at a Solution

The system goes to the right because:

Tension>m1gsin-um1gcos

Tension = m2g-ma

Tension-m1gsin-um1gcos = ma

sub in for tension to get

m2g-m2a-m1gsin-umgcos = m1a

78.4 - 8a - 10(9.8)(sin30)-(.05)(10)(9.8)cos30 = 10a

solving for a gives me 1.397

the REAL answer is supposed to be .464

what did i do wrong?♦

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