- #1
siderealtime
- 8
- 0
A block slides down an inclined plane, here are the variables:
theta of incline = 37 degrees
mass of block = 10 kg
coefficient of kinetic friction = .500
applied force on block perpendicular to plane = 20N
[tex]\sum[/tex] x = mgsin(theta) - fk = ma
[tex]\sum[/tex] y = (20N + mgcos(theta)) - n = 0
n = 20N + mgcos(theta) = 98.3N
fk = [tex]\mu[/tex]*n
I need to find acceleration of the block. Here is how I'm currently doing
it and I would like to know if this is correct.
solving for a in the first equation gives
a = mgsin(theta) - [tex]\mu[/tex]k*n / m
What I'm wondering is if the mass in the denominator is supposed to drop out?
theta of incline = 37 degrees
mass of block = 10 kg
coefficient of kinetic friction = .500
applied force on block perpendicular to plane = 20N
[tex]\sum[/tex] x = mgsin(theta) - fk = ma
[tex]\sum[/tex] y = (20N + mgcos(theta)) - n = 0
n = 20N + mgcos(theta) = 98.3N
fk = [tex]\mu[/tex]*n
I need to find acceleration of the block. Here is how I'm currently doing
it and I would like to know if this is correct.
solving for a in the first equation gives
a = mgsin(theta) - [tex]\mu[/tex]k*n / m
What I'm wondering is if the mass in the denominator is supposed to drop out?