- #1
Sarah00
- 64
- 1
Homework Statement
Homework Equations
F = ma
Ffr = u * Fn
The Attempt at a Solution
After drawing FBD
For m2: we have only friction force in horizontal axis so Ffr = ma ==> u * Fn = ma ==> u * mg = ma ==> u * g = a ==> a = 0.5 * 10 = 5 m/s2
Now, moving to m1:
F - Ffr = ma ==> F - u Fn = 10 * 5 ==> F - 0.5*130 = 50 ==> F - 65 = 50 ==> F = 115 N
But it is not in choices,
Is my solution wrong?
or
Are the choices wrong?