Answer:
answer a because -15/8 is -1.875
Answer: 105.3 m
Step-by-step explanation:
Given
Applied force is 
Work done is 
Work done is given by the displacement done by the force.

Answer:
Step-by-step explanation:
x ≓ -2.009940617
Answer:
3x-2
Step-by-step explanation:
Answer:
Step-by-step explanation:
moments about the fulcrum should be equal
IF x is the distance of the fulcrum from the 90 lb child
90[x] = 60[12 - x]
90x = 720 - 60x
150x = 720
x = 4.8 ft
90(4.8) = 432 ft•lb
60(12 - 4.8) = 432 ft•lb