Concept explainers
(a)
The acceleration of the bullet.
(a)
Answer to Problem 82P
The bullet has an acceleration of
Explanation of Solution
Write the
Here,
Rewrite equation (I) to obtain an equation for
Conclusion:
Substitute
Therefore, the acceleration of the bullet is
(b)
The force on the bullet.
(b)
Answer to Problem 82P
The force on the bullet is
Explanation of Solution
Write the equation for the force on the bullet using Newton’s second law.
Here,
Conclusion:
Substitute
Therefore, the force on the bullet is
(c)
The magnitude of force exerted on the gun.
(c)
Answer to Problem 82P
The magnitude of force exerted on the gun is
Explanation of Solution
According to
Here,
Conclusion:
Substitute
Therefore, the magnitude of force exerted on the gun is
(d)
The acceleration experienced by the gun
(d)
Answer to Problem 82P
The gun experiences an acceleration of
Explanation of Solution
Write the equation for the force on the gun using Newton’s second law.
Here,
Conclusion:
Substitute
Therefore, the acceleration experienced by the gun is
(e)
The ratio of mass
(e)
Answer to Problem 82P
The acceleration ration is the inverse mass ratio.
Explanation of Solution
Write the ratio for mass
Write the ratio of the acceleration and substitute.
Conclusion:
From equation (II) and (III), the acceleration ration is the inverse ratio of the mass.
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Chapter 3 Solutions
College Physics, Volume 1
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