Question

an automobile traveling 30.0 m/s has wheels of 0.750 m diameter. (a) what is the angular speed of the wheels about the axle? (b) if the car is brought to a stop uniformly in 10.0 s, what is the angular acceleration? (c) How many times do the wheels turn during thus braking period?

Answer 1

\[a = -3m/s^2\]

Answer 2

\[aT = \alpha r\]

Answer 3

\[= -3 * 0.75/ 2 = -1.125\]

Answer 4

\[s = ut + 1/2 a t^2\]

Answer 5

\[= 300 - 1/2 * 1.25 * 10 * 10 = 243.75\]

Answer 6

@shubhamsrg @ajprincess

Answer 7

\[2 * 3.14 * 0.375 = 2.3\]

Answer 8

= 2.355

Answer 9

@sarahvince Do u have the answer key???

Answer 10

yes thank you

Answer 11

so the answer in letter c is 2,355?

Answer 12

i am not sure of my answers

Answer 13

No : of rotations = n * Circumfrence = Distance covered

Answer 14

im confused hehehe

Answer 15

Do u knw abt Circular Motion??

Answer 16

yes thats our latest lesson

Answer 17

Do u knw angular velocity , centripetal acceleartion

Answer 18

i just want to makes ure my answers are correct. hehehe

Answer 19

wat is ur answers

Answer 20

@shubhamsrg @shubhamsrg @shubhamsrg @shubhamsrg @shubhamsrg @shubhamsrg @shubhamsrg @shubhamsrg @shubhamsrg @shubhamsrg @shubhamsrg @shubhamsrg

Answer 21

@dpaInc @lgbasallote @UnkleRhaukus @hba

Answer 22

@maheshmeghwal9

Answer 23

@ujjwal @ujjwal @ujjwal @ujjwal @ujjwal @ujjwal

Answer 24

@kartiksriramk @kartiksriramk @kartiksriramk @kartiksriramk @kartiksriramk @kartiksriramk @kartiksriramk

Answer 25

@Compassionate @experimentX

Answer 26

i think there is wrong in my answer can u correct it @experimentX

Answer 27

v = wr

Answer 28

that is linear speed