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Tuesday, October 12, 2010
Ch8 2 #1
Use equation 8.10. Make sure to use the perpendicular distance between force and pivot.
4 comments:
Anonymous
said...
I used the equation T=Frsin(theta) but when I plug in my r value (in m) and use that equation to solve for F, it tells me that's the wrong equation. What am I doing wrong? theta=30 r=35cm=0.035m torque=-17 Nm
4 comments:
I used the equation T=Frsin(theta) but when I plug in my r value (in m) and use that equation to solve for F, it tells me that's the wrong equation. What am I doing wrong?
theta=30
r=35cm=0.035m
torque=-17 Nm
I solved and got -971.43 but it says it's wrong.
You have to use cosine not sine in this one.
and convert whats needed.
Please understand why it's cosine. Use soh-cah-toa and figure out which side of the triangle gives the perpendicular force
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