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imy786
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Homework Statement
(a) acceleration amplitude of 100 ms−2 with a vibration amplitude of 5.0 cm.
(i) What frequency of vibration is required?
(ii) What is the maximum speed ?
(iii)What is the time delay between the points of maximum acceleration and
of maximum speed?
Homework Equations
speed= f * wavelength
f= 1/ time period
The Attempt at a Solution
(i)
a= -2*pi*f*x
100= -2*pi*f*0.05
400=-pi *f
400/ -3.141= f
f= - 127.32 Hz
(can frequency be minus)??
(ii)
speed = integral of accelration
a= -2*pi*f*x
speed= f * wavelength
(iii)
time delay
f= 1/ time period
t= 1/ - 127.32 Hz
t= 0.00785423
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