q1
You are given a 200g and a 500g block, an eraser as your fulcrum and a 30cm ruler. Sketch and calculate a balanced class 1 lever. You will prove your solution as a homework check.
q2
Simulate, sketch, and calculate a human arm lifting 200g at the elbow. How much energy is required to hold it level, and start to move it. Assume that youe muscle fibers are 1cm away from the elbow; calculate the force required from your bicep. Hint: what kind of lever is your arm?
No comments:
Post a Comment