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Car Spring Constant & Oscillation Analysis

1. When a family of four totaling 200 kg enters their 1200 kg car, the car's springs compress 3 cm. 2. The spring constant of the car's single spring is calculated to be 66.667 N/m. 3. If the car is loaded with an additional 300 kg, the springs will compress an additional 4 cm, and the car will oscillate up and down after hitting a bump at a period of 0.42 seconds and a frequency of 2.38 Hz.

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Atika Irbah
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83 views2 pages

Car Spring Constant & Oscillation Analysis

1. When a family of four totaling 200 kg enters their 1200 kg car, the car's springs compress 3 cm. 2. The spring constant of the car's single spring is calculated to be 66.667 N/m. 3. If the car is loaded with an additional 300 kg, the springs will compress an additional 4 cm, and the car will oscillate up and down after hitting a bump at a period of 0.42 seconds and a frequency of 2.38 Hz.

Uploaded by

Atika Irbah
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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1.

When a family of four with a total mass of 200 kg step into their 1200 kg car, the cars sprins
compress 3.0 cm . (a) What is the spring constant of the cars spring , asumming the act as a
single spring . (b) How fall will the car lower if loaded with 300 kg what are the period and
frequency of the car after hiting bump? Asumme the sock absorbers are poors, so the car really
oscillates up and down.

Diket : morang = 200 kg

mmobil = 1200 kg

x = 3 cm = 0.03 m

Ditanya : (a) What is the spring constant of the cars spring , asumming the act as a single spring.

(b) How fall will the car lower if loaded with 300 kg what are the period and frequency
of the car after hiting bump? Asumme the sock absorbers are poors, so the car really
oscillates up and down.

Solusi :

a. F = k.x F = m.g
F
k= x = 200 kg . 10 m/s2
2000 N
= 0.03 m = 2000 N

= 66.666,7 N/m

b. F = k.x m = 300 kg
F
x = k F=m.g
300.10
= 66.666,7 = 300 kg . 10 m/s2
= 0.04 m = 3000 N

T = 2 m
k = 2.3,14 300
66666,67 = 6,28 0,0045 = 0,42 s
1 1
F= T = 0,42 = 2,38 Hz

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