Answered: 75.0 ст 4.20 g 2.50 kg

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter4: Physics Of Matter

Section: Chapter Questions

Problem 7P: A large chunk of metal has a mass of 393 kg, and its volume is measured to be 0.05 m3. (a) Find the...

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Forensic scientists can measure the muzzle velocity of a gun by firing a bullet horizontally into a large hanging block that absorbs the bullet and swings upward. (See (Figure 1).) The measured maximum angle of swing can be used to calculate the speed of the bullet. In one such test, a rifle fired a 4.20 g bullet into a 2.50 kg block hanging by a thin wire 75.0 cm long, causing the block to swing upward to a maximum angle of 32.6 ∘ from the vertical.

What was the original speed of this bullet?

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