A 3kg particle has a velocity of (3i-4j) m/s. Find the magnitude of its momentum?
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Answers:
a) 9kg m/s
b) -12 kg m/s
c) 15 kg m/s
d) 3 kg m/s
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A sinusoidal wave is described by y=(0.30m)sin(0.20x-40t). Determine the wave speed.
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Answers:
a) 100 m/s
b) 133 m/s
c) 150 m/s
d) 200 m/s
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OTA: Please take this problem only if you can show step by step problem solving techniques and equations used. Thank you.
a) 100 m/s
b)

Solution Preview

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Here is my solution:

The momentum vector is the velocity vector multiplied by the mass of the particle:

P=mV

V=3i-4j
m=3

P=3(3i-4j)=9i-12j

To find the total magnitude of the momentum, one must find the magnitude of the vector:

|P|=sqrt(Px^2+Py^2)

Where Px is ...

Solution Summary

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