Mertsj 3 years ago @wasiqss How is it 50 pi radians per second? If you contradict an answer you should provide a reason.

1. meverett04

original question?

2. wasiqss

the speed was 25 m/s,so it means 25 rev in one second, hence 1 rev = 2pie so multiply 2 pie with 25

3. Mertsj

25 m per second does not mean 25 rev in 1 sec since 1 rev is pi m not 1 meter

4. TuringTest

I wanna know the question as well now

5. imranmeah91

it would help if we know size of wheel

6. satellite73
7. Mertsj

a truck is moving at a rate of 90km/hr, and the diameter of its wheel is 1 meter. find the angular speed of the wheels in radians per second.

8. TuringTest

it is a circumference of pi

9. Mertsj

Of course. That is what I said.

10. TuringTest

I know, just backing you up

11. imranmeah91

12. wasiqss

diameter was one meter

13. Mertsj

Yep so 1 revolution is C = Pi times diameter or pi meters

14. imranmeah91

90000 ------- = cycle per hours 2 pi .5 90000 ------- 1/3600 = cycle per second 2 pi .5 90000 ------- *2pi*1/3600 =(90000/.5)*1/3600= radian per second

15. wasiqss

i rev= 2pie, hence 25 rev means 50 pie

16. imranmeah91

who said 25 rev?