Simple Harmonic Motion...1

[nycmathguy]

Section 4.8

1. Is any of this right?
2. Can you do part (d)?

 

[MathLover1]

part d.

0=(1/2)cos(20pi*t)
will be if cos(20pi*t) =0

t = n/20 - 1/40, n element Z

n=1

t = 1/20 - 1/40
t=1/40
t=0.025

 

[nycmathguy]

part d.

0=(1/2)cos(20pi*t)
will be if cos(20pi*t) =0

t = n/20 - 1/40, n element Z

n=1

t = 1/20 - 1/40
t=1/40
t=0.025

I assume the first-three parts are correct. Yes?

 

[MathLover1]

Yes

 

[nycmathguy]

Yes

Thanks. Good night.

 

[nycmathguy]

part d.

0=(1/2)cos(20pi*t)
will be if cos(20pi*t) =0

t = n/20 - 1/40, n element Z

n=1

t = 1/20 - 1/40
t=1/40
t=0.025

Check your PM here. Seven questions for you.