Need pre calc help

[patent sedge]

Need help solving

someone please help me

[tepid sequoia]

9.3 sec/revolution
Each revolution has 2pi radians

For B) Find circumference of wheel, that’s the linear speed of one rev/sec

[patent sedge]

isnt there a formula tho

like v = s/t

and omega = theta/t

and v = omega times radius

[tepid sequoia]

Yea I forgot those formulas

[patent sedge]

so how do i use those to solve

[tepid sequoia]

1 rev = 2pi radians
1 rev/sec = 2pi rad/sec
9.3 rev/sec = ?

[patent sedge]

18.6pi radians?

[tepid sequoia]

Yes

Per second

Then find minute

[patent sedge]

but it says feet per second

not radians

[tepid sequoia]

That was for A

For B
Linear velocity/time= distance circumference • revolutions/time

[patent sedge]

15 * 18.6

[tepid sequoia]

(15•pi) * 9.3