A pendulum has a mass of 3 kg, a length of 2 meters, and swings through a (half)arc of 24.4 degrees.?

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A pendulum has a mass of 3 kg, a length of 2 meters, and swings through a (half)arc of 24.4 degrees.?

What is its amplitude to the nearest centimeter?

2007-12-17 11:29:27 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Engineering

2 answers

if the amplitude is the maximum (lateral) distance from the centre of oscillations then the answer is just
200*sin(24.4 degrees) = 82.62 cm
to the nearest cm that's 83 cm.

the mass appears to be irrelevant in this question

2007-12-19 13:59:33 · answer #1 · answered by Anonymous · 0⤊ 0⤋

A = 200sin(24.4) ≈ 82.62089 cm ≈ 83 cm
The half-swing is 200π(24.4)/180 ≈ 85 cm

2007-12-19 14:06:29 · answer #2 · answered by Helmut 7 · 1⤊ 0⤋