Question

2. The diagram below represents a seesaw plank balanced on its pivot point which is located at the midpoint of the plank. A child of mass 32.0 kg climbs aboard the seesaw left of the midpoint at the same time that an adult of 64.0 kg climbs aboard to the right of the midpoint. If the child sits at the very end of the seesaw on the left, where must the adult be located to keep the seesaw balanced. Use the center of mass formula to make this calculation. 1 2 3 4 6 7 8 9 10 For problems 3 and 4 below, you will need to refer to page 448 of the openstax text, \"Center of Mass of Continuous objects\" in order to solve them. 3. A thin rod of length L with a uniform distribution of mass M is located on the horizontal axis of the coordinate system as shown below. Use the relationship $X_{cm} = \frac{1}{M} \int xdm$ to show that the x- coordinate of the center of mass is located at $\frac{L}{2}$

          2. The diagram below represents a seesaw plank balanced on its pivot point which is located at the
midpoint of the plank. A child of mass 32.0 kg climbs aboard the seesaw left of the midpoint at the
same time that an adult of 64.0 kg climbs aboard to the right of the midpoint. If the child sits at the
very end of the seesaw on the left, where must the adult be located to keep the seesaw balanced.
Use the center of mass formula to make this calculation.
1
2
3
4
6
7
8
9
10
For problems 3 and 4 below, you will need to refer to page 448 of the openstax text, \"Center of Mass of
Continuous objects\" in order to solve them.
3. A thin rod of length L with a uniform distribution of mass M is located on the horizontal axis of the
coordinate system as shown below. Use the relationship $X_{cm} = \frac{1}{M} \int xdm$ to show that the x-
coordinate of the center of mass is located at $\frac{L}{2}$

2. The diagram below represents a seesaw plank balanced on its pivot point which is located at the
midpoint of the plank. A child of mass 32.0 kg climbs aboard the seesaw left of the midpoint at the
same time that an adult of 64.0 kg climbs aboard to the right of the midpoint. If the child sits at the
very end of the seesaw on the left, where must the adult be located to keep the seesaw balanced.
Use the center of mass formula to make this calculation.
1
2
3
4
6
7
8
9
10
For problems 3 and 4 below, you will need to refer to page 448 of the openstax text, C̈enter of Mass of
Continuous objectsïn order to solve them.
3. A thin rod of length L with a uniform distribution of mass M is located on the horizontal axis of the
coordinate system as shown below. Use the relationship Xcm = (1)/(M)∫ xdm to show that the x-
coordinate of the center of mass is located at (L)/(2)

Added by Brian P.

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