In a ballistic pendulum an object of mass in is fired with an initial speed at a pendulum bob. The bob has a mass M, which is suspended by a rod of length L and negligible mass. After the collision, the pendulum and object stick together and swing to a maximum angular displacement as shown (Figure 1). Figure L M -M+m 2-0 1 of 1 Part A Find an expression for the initial speed of the fired object. Express your answer in terms of some or all of the variables m, M, L., and and the acceleration due to gravity, g- ▸ View Available Hint(s) ΑΣΦ Submit Part B (vo)/(0)4= ← Submit + An experiment is done to compare the initial speed of bullets fired from different handguns: a 9.0 mm and a 44 caliber. The guns are fired into a 10-kg pendulum bob of length L. Assume that the 9.0-mun bullet has a mass of 6.0 g and the .44-caliber bullet has a mass of 12 g. If the 9.0-mum bullet causes the pendulum to swing to a maximum angular displacement of 4.3" and the .44-caliber bullet causes a displacement of 10.1°, find the ratio of the initial speed of the 9.0-mm bullet to the speed of the .44-caliber bullet, (n)/(Un)- Express your answer numerically. ► View Available Hint(s) Û M ? 9. A£$ C Haviaw ?
In a ballistic pendulum an object of mass in is fired with an initial speed at a pendulum bob. The bob has a mass M, which is suspended by a rod of length L and negligible mass. After the collision, the pendulum and object stick together and swing to a maximum angular displacement as shown (Figure 1). Figure L M -M+m 2-0 1 of 1 Part A Find an expression for the initial speed of the fired object. Express your answer in terms of some or all of the variables m, M, L., and and the acceleration due to gravity, g- ▸ View Available Hint(s) ΑΣΦ Submit Part B (vo)/(0)4= ← Submit + An experiment is done to compare the initial speed of bullets fired from different handguns: a 9.0 mm and a 44 caliber. The guns are fired into a 10-kg pendulum bob of length L. Assume that the 9.0-mun bullet has a mass of 6.0 g and the .44-caliber bullet has a mass of 12 g. If the 9.0-mum bullet causes the pendulum to swing to a maximum angular displacement of 4.3" and the .44-caliber bullet causes a displacement of 10.1°, find the ratio of the initial speed of the 9.0-mm bullet to the speed of the .44-caliber bullet, (n)/(Un)- Express your answer numerically. ► View Available Hint(s) Û M ? 9. A£$ C Haviaw ?
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Transcribed Image Text:In a ballistic pendulum an object of mass in is fired with an initial speed at a
pendulum bob. The bob has a mass M, which is suspended by a rod of length
L and negligible mass. After the collision, the pendulum and object stick
together and swing to a maximum angular displacement as shown (Figure 1).
Figure
L
M
-M+m
2-0
1 of 1
Part A
Find an expression for
the initial speed of the fired object.
Express your answer in terms of some or all of the variables m, M, L., and and the acceleration due to gravity, g-
▸ View Available Hint(s)
ΑΣΦ
Submit
Part B
(vo)/(0)4=
←
Submit
+
An experiment is done to compare the initial speed of bullets fired from different handguns: a 9.0 mm and a 44 caliber. The guns are fired into a 10-kg pendulum bob of length L. Assume
that the 9.0-mun bullet has a mass of 6.0 g and the .44-caliber bullet has a mass of 12 g. If the 9.0-mum bullet causes the pendulum to swing to a maximum angular displacement of 4.3" and
the .44-caliber bullet causes a displacement of 10.1°, find the ratio of the initial speed of the 9.0-mm bullet to the speed of the .44-caliber bullet, (n)/(Un)-
Express your answer numerically.
► View Available Hint(s)
Û M ?
9. A£$
C
Haviaw
?
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