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SHM15

1.2.9 Example


A body undergoes a simple harmonic motion with amplitude 3.0 m and period 4.00 s. Find the

a)    angular frequency,
b)    maximum speed,
c)    maximum acceleration,
d)    acceleration of the body when it is 1.0 m from the equilibrium point, and
e)    speed of the body when it is 1.0 m from the equilibrium point.

[ 1.57 rad/s, 4.7 m/s , 7.4 m/s^2 , -2.5 m/s^2, 4.4 m/s ]

Hint:

1.2.9.1 Solution:

a) angular frequency , ω = 2 π T = 2 π 4 = 1.57 r a d s

b) maximum speed, v0 = x0ω = (3.00)(1.57) = 0.047 m/s

c) maximum acceleration, |a0| = x0ω2 = (3.00)(1.57)2 = 7.4 m/s2

d) when x = 1.00, acceleration, a = -ω2x = (1.57)2(1.00) = -2.5 m/s2

e) when x = 1.00, speed, v = x0ω = (3.00)(1.57) = 4.4 m/s

1.2.9.2 Model:

  1. Run Sim
  2. http://iwant2study.org/ospsg/index.php/78
 

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Parent Category: 02 Newtonian Mechanics
Category: 09 Oscillations
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