
(a)
To Find: The value of
(a)

Answer to Problem 42P
Explanation of Solution
Given information:
A hammer thrower accelerates the hammer (mass
Formula used:
Here,
Calculation:
Mass of the hammer,
Number of rotations,
Total angular displacement,
The hammer starts from rest, hence
Let
Radius of the circular motion,
Speed with which hammer is released is
Angular speed with which hammer is released,
From third kinematic equation:
Conclusion:
The value is
(b)
To Find: The tangential acceleration
(b)

Answer to Problem 42P
The value is
Explanation of Solution
Given information:
A hammer thrower accelerates the hammer (mass
Formula used:
Here,
Calculation:
The tangential acceleration
Conclusion:
The value is
(c)
To Find: The centripetal acceleration
(c)

Answer to Problem 42P
The centripetal acceleration is
Explanation of Solution
Given information:
A hammer thrower accelerates the hammer (mass
Formula used:
Here,
Calculation:
The centripetal acceleration
Conclusion:
The centripetal acceleration is
(d)
To Find: Net acceleration of the hammer
(d)

Answer to Problem 42P
The value is
Explanation of Solution
Given information:
A hammer thrower accelerates the hammer (mass
Formula used:
Here,
Calculation:
The net acceleration of the hammer
Hence, net force exerted on hammer:
Conclusion:
The value is
(e)
To find: The angle between the force and the radius.
(e)

Answer to Problem 42P
The angle between the force and the radius is
Explanation of Solution
Given information:
A hammer thrower accelerates the hammer (mass
Formula used:
Here,
Calculation:
Angle that the force makes with the radius
Conclusion:
The angle between the force and the radius is
Chapter 8 Solutions
Physics: Principles with Applications
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