Hey i need help on two questions please i would really appreciate it.
1. A wheel of radius 11 in. is rotating at a rate of 2400 rpm. (Enter your answers in terms of π.)
(a) Find the angular speed (in radians per minute) of each pulley.
Motor pulley: i put 2pi*1600 and got 10053.0965 that's right
Saw Arbor: i'm confused on this one. i put (2/4)(20106.193) all over 2pi but i keep getting the wrong answer
(b) Find the revolutions per minute of the saw .
i can't even do this question b/c the second part of (a) is messing me up
2.Use the given arc length and radius to find the angle θ (in radians).
i know s=rtheta
so i put 52/65 and reduced it to 4/5 but it says it's wrong i have no idea what i'm doing wrong . Thanks!
1. A wheel of radius 11 in. is rotating at a rate of 2400 rpm. (Enter your answers in terms of π.)
(a) Find the angular speed (in radians per minute) of each pulley.
Motor pulley: i put 2pi*1600 and got 10053.0965 that's right
Saw Arbor: i'm confused on this one. i put (2/4)(20106.193) all over 2pi but i keep getting the wrong answer
(b) Find the revolutions per minute of the saw .
i can't even do this question b/c the second part of (a) is messing me up
2.Use the given arc length and radius to find the angle θ (in radians).
i know s=rtheta
so i put 52/65 and reduced it to 4/5 but it says it's wrong i have no idea what i'm doing wrong . Thanks!