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ycow [4]
3 years ago
13

A vertical spring stretches 3.8 cm when a 13-g object is hung from it. The object is replaced with a block of mass 20 g that osc

illates in simple harmonic motion. Calculate the period of motion.
Physics
1 answer:
Alex777 [14]3 years ago
3 0

Answer:

The period of motion is 0.5 second.

Explanation:

Given;

extension of the spring, x = 3.8 cm = 0.038 m

mass of the object, m = 13 g = 0.013 kg

Determine the force constant of the spring, k;

F = kx

k = F / x

k = mg / x

k = (0.013 x 9.8) / 0.038

k = 3.353 N/m

When the object is replaced with a block of mass 20 g, the period of motion is calculated as;

T = 2\pi\sqrt{\frac{m}{k} } \\\\T =  2\pi\sqrt{\frac{0.02}{3.353} } \\\\T = 0.5 \ second

Therefore, the period of motion is 0.5 second.

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