Question

I dont really get linear and angular speed :(

A car is moving at the rate of 40 miles per hour and the diameter of its wheels is 2.5 feet.

a) Find the rotational speed of the wheels in revolutions per minute.

b) Find the angular speeds of the wheels in radians per minute.

Answer 1

\[V =\omega r\]

\[\omega = V/r\]

Answer 2

?

Answer 3

angular speed

Answer 4

um..can you show me how to solve this problem..? i have the formulas already..

Answer 5

r is in feet so..change it to miles..))

Answer 6

wouldnt r = 1.25?

Answer 7

Lol....Giving direct answers is prohibited here

Answer 8

I have the answer..I need to know HOW to solve it.

Answer 9

but 2.5 is the diameter

Answer 10

Yup....u r correct..

Answer 11

just subs nw

Answer 12

so 1.25 would be r

Answer 13

1.25 feet

Answer 14

Ok let me solve and see if i get it

Answer 15

and v= 40miles/hr

Answer 16

or \[\omega = 2\pi V/T\]

Answer 17

U can use any of them here..))

Answer 18

nw solve this and tell me the answer

Answer 19

Hold on this willtakeme a while..Tyyy tho

Answer 20

ok..

Answer 21

the whole of the second hand of the clock moves at the angular speed of 1/60 of the way round in one second

the tip of the hand will have a faster linear speed because is further out from the center ,
it covers greater distance than a point mid way along the hand