- #1
lemon
- 200
- 0
1. The rod shown in the diagram(mass 10g, length 100cm) is in equilibrium. Find the position of the pivot and the magnitude of the supporting force F.
2.clockwise moments = anti-clockwise moments
3. I'm not so sure here. I have unknown distances.
Please see file attachment 2 - Distances 1-4.
dtotal=100cm
d1=30cm
d2=20cm from 40g object to the (Weight force component) centre of rod.
d3 and d4 are unknown
(0.01xd1)+[0.04x(d2+(50-d4))]+(0.01xd3)=0.06xd4
(0.01x0.30)+[0.04x(0.20+(50-d4))]+(0.01xd3)=0.06xd4
So I have a couple of d-unknowns. Do I solve for one then plug back into get the other?
Can't see how this would work with [0.04x(d2+(50-d4))] this in the equation.
Please advise?
2.clockwise moments = anti-clockwise moments
3. I'm not so sure here. I have unknown distances.
Please see file attachment 2 - Distances 1-4.
dtotal=100cm
d1=30cm
d2=20cm from 40g object to the (Weight force component) centre of rod.
d3 and d4 are unknown
(0.01xd1)+[0.04x(d2+(50-d4))]+(0.01xd3)=0.06xd4
(0.01x0.30)+[0.04x(0.20+(50-d4))]+(0.01xd3)=0.06xd4
So I have a couple of d-unknowns. Do I solve for one then plug back into get the other?
Can't see how this would work with [0.04x(d2+(50-d4))] this in the equation.
Please advise?