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Likurg_2 [28]
3 years ago
8

A bullet with a mass of 0.020 kg collides with a 2.5 kg wooden block at

Physics
1 answer:
kondaur [170]3 years ago
5 0

Answer:

151.2 m/s

Explanation:

m1 = 0.020 kg

m2 = 2.5 kg

vf = 1.2 m/s

m1v1 +m2v2 = (m1 +m2)vf

0.020v1 + 0 = (0.020 +2.5)(1.2)

---> 151.2 m/s

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Maximum speed of the child as she swings is  2.23 m/s.

<h3>Step by Step Calculation:</h3>

T=3.3 s is the oscillation's time period.

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The swing's bottom will have the following kinetic energy:

k=12mv2...........(1)

The mass in this situation is m, and the speed is v.

The potential energy change is expressed as,

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Therefore, the child's top speed is 2.23 m/s.

<h3>What is Oscillation ?</h3>
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To learn more about Oscillation refer to:

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