A pendulum formed by a 1m rope and a mass of 500g, separates 5° from the equilibrium point. Calculate a) the period and the amplitude in cm, b) the tension of the rope and the restoring force: c) the mechanical energy and the maximum speed.

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step-by-step explanation:

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.

b is the correct answer