Answer:
45
Explanation:
well 45
Mechanical advantage will be option b)1.25
What is Mechanical advantage ?
Mechanical advantage equal to the ratio of length of the input arm and output arm
Given
Input arm = 50 cm
output arm = 40 cm
Mechanical advantage = Input distance / Output distance
= 50 / 40
= 1.25
Mechanical advantage will be option b)1.25
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