A 14.2 g bullet is shot vertically into a2.64 kg block. When the bullet penetrates the block, itcomes to rest in a time interval of 1.12 ms. The block liftsupward 9.30 mm vertically with the bullet embedded.Ignore air resistance and ignore the force of gravity duringthe 1.12 ms embedding time. Find (A) the initial kineticenergy of the bullet before the collision and (B) find the % ofthis energy lost as heat during the collision. After yourcalculations, (C) show that it was a good approximation toignore the force of gravity during the 1.12 ms it took thebullet to come to rest in the blockV60WIAn9

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A 14.2 g bullet is shot vertically into a 2.64 kg block. When the bullet penetrates the block, it comes to rest in a time interval of 1.12 ms. The block lifts upward 9.30 mm vertically with the bullet embedded. Ignore air resistance and ignore the force of gravity during

A 14.2 g bullet is shot vertically into a 2.64 kg block. When the bullet penetrates the block, it comes to rest in a time interval of 1.12 ms. The block lifts upward 9.30 mm vertically with the bullet embedded. Ignore air resistance and ignore the force of gravity during

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

A 14.2 g bullet is shot vertically into a
2.64 kg block. When the bullet penetrates the block, it
comes to rest in a time interval of 1.12 ms. The block lifts
upward 9.30 mm vertically with the bullet embedded.
Ignore air resistance and ignore the force of gravity during
the 1.12 ms embedding time. Find (A) the initial kinetic
energy of the bullet before the collision and (B) find the % of
this energy lost as heat during the collision. After your
calculations, (C) show that it was a good approximation to
ignore the force of gravity during the 1.12 ms it took the
bullet to come to rest in the block
V
60
WI
An
9

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Step 1: Write the given data with suitable variables-

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Step 2: (a)- Determine the value of kinetic energy-

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Step 3: (B)-Determine the value of loss of energy.

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Step 4: (C)-Determine the value of impluse.

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