SIMPLE MACHINES Chapter 9

Pick an animal and name one motion that this animal does. State whether or not the motion represents the motion of a lever. If a lever is represented, explain whether it is a first, second, or third class lever. Justify your answer.

muscle endurance

explanation:

i can do 50 in a row ( but i get so tired after that)

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

e/c, where e is its total energy