Use the worked example above to help you solve this problem. Awoman of mass m = 51.0 kg sits on the left end of a seesawâa plankof length L = 3.94 mâpivoted in the middle as shown in thefigure.
(a) First compute the torques on the seesaw about an axis thatpasses through the pivot point. Where should a man of mass M = 67.6kg sit if the system (seesaw plus man and woman) is to bebalanced?
2. m
(b) Find the normal force exerted by the pivot if the plank has amass of mpl = 10.0 kg.
3. N
(c) Repeat part (a), but this time compute the torques about anaxis through the left end of the plank.
4. m
----EXERCISE HINTS: GETTING STARTED!!!! (NEED ANSWERS :) :))
Suppose a 34.2 kg child sits 1.10 m to the left of center on thesame seesaw as the problem you just solved. A second child sits atthe end on the opposite side, and the system is balanced.
(a) Find the mass of the second child.
mass child 2 = kg
(b) Find the normal force acting at the pivot point.
Fn = N
Use the worked example above to help you solve this problem. Awoman of mass m = 51.0 kg sits on the left end of a seesawâa plankof length L = 3.94 mâpivoted in the middle as shown in thefigure.
(a) First compute the torques on the seesaw about an axis thatpasses through the pivot point. Where should a man of mass M = 67.6kg sit if the system (seesaw plus man and woman) is to bebalanced?
2. m
(b) Find the normal force exerted by the pivot if the plank has amass of mpl = 10.0 kg.
3. N
(c) Repeat part (a), but this time compute the torques about anaxis through the left end of the plank.
4. m
----EXERCISE HINTS: GETTING STARTED!!!! (NEED ANSWERS :) :))
Suppose a 34.2 kg child sits 1.10 m to the left of center on thesame seesaw as the problem you just solved. A second child sits atthe end on the opposite side, and the system is balanced.
(a) Find the mass of the second child.
mass child 2 = kg
(b) Find the normal force acting at the pivot point.
Fn = N
