The speed of a moving bullet can be determined by allowing the bullet to pass through two rotating paper disks mounted a distance d apart on the same axle (Fig. P10.68). From the angular displacement Δθ of the two bullet holes in the disks and the rotational speed of the disks, we can determine the speed v of the bullet. Find the bullet speed for the following data: d = 55 cm, ω = 850 rev/min, and Δθ = 31.0°.
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Question

The speed of a moving bullet can be determined by allowing the bullet to pass through two rotating paper disks mounted a distance d apart on the same axle (Fig. P10.68). From the angular displacement Δθ of the two bullet holes in the disks and the rotational speed of the disks, we can determine the speed v of the bullet. Find the bullet speed for the following data: d = 55 cm, ω = 850 rev/min, and Δθ = 31.0°.
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anonymous · Answer

What exactly is your question? What have you got so far?

myname · Answer

I m sorry i solved it but thanks for trying to help

anonymous · Answer

Good for you. You are very welcome ;)

myname · Answer

But i have another question if you have time

anonymous · Answer

Depends on the question - but I'd say, just post it 'regularly', so others see it, too ;)

myname · Answer

great