A mother weighing 800N sits on a see-saw, 0.5 from the pivot. Her child sits on the other side. The see-saw is balanced. a- Caculate the moment of the mothers weight.

b-Caculate the moment of the child's weight

a. is the answer because they are not shared

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

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