1. A 1.50 kg mass on a spring has displacement as a function of time given by x(t) = (7.40 cm) cos[(4.16 rad/s)t – 2.42] Find (a) the time for one complete vibration; (b) the force constant of the spring; (c) the maximum speed of the mass; (d) the maximum force on the mass; (e) the position, speed, and acceleration of the mass at t = (f) the force on the mass at that time. 1.00 s;

Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
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Chapter15: Oscillatory Motion
Section: Chapter Questions
Problem 27P
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1. A 1.50 kg mass on a spring has displacement as a function of time given by
x(t) = (7.40 cm) cos [(4.16 rad/s)t – 2.42]
Find (a) the time for one complete vibration; (b) the force constant of the spring;
(c) the maximum speed of the mass; (d) the maximum force on the mass;
(e) the position, speed, and acceleration of the mass at t= 1.00 s;
(f) the force on the mass at that time.
Transcribed Image Text:1. A 1.50 kg mass on a spring has displacement as a function of time given by x(t) = (7.40 cm) cos [(4.16 rad/s)t – 2.42] Find (a) the time for one complete vibration; (b) the force constant of the spring; (c) the maximum speed of the mass; (d) the maximum force on the mass; (e) the position, speed, and acceleration of the mass at t= 1.00 s; (f) the force on the mass at that time.
The time for one complete vibration is:
2.7
T =-
27
4.16 rad/s
=1.51s
(b)
The force constant of the spring is:
k = mo
=(1.50 kg)(4.16 rad/s)
= 25.9584 N/m
- 25.96 N/m
Step 3
(c)
The maximum speed of the mass is:
= Ao
=(7.40 cm )(4.16 rad/s)
mar
=(0.074 m)(4.16 rad/s)
= 0.30784 m/s
- 0.31 m/s
Transcribed Image Text:The time for one complete vibration is: 2.7 T =- 27 4.16 rad/s =1.51s (b) The force constant of the spring is: k = mo =(1.50 kg)(4.16 rad/s) = 25.9584 N/m - 25.96 N/m Step 3 (c) The maximum speed of the mass is: = Ao =(7.40 cm )(4.16 rad/s) mar =(0.074 m)(4.16 rad/s) = 0.30784 m/s - 0.31 m/s
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