Defining Mechanical Advantage and Efficiency
Mechanical advantage is the ratio of
Efficiency is the ratio of
expressed as a percentage.
Intro
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Activity

Ababy stroller is a rest on top of a hill which is 10 m high. the stroller and baby have a mass of 20 kg. what is the potential energy of the baby and stroller?

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?

Which articulations allow for greatest range of motion?