
Concept explainers
(a)
The time interval required for
(a)

Answer to Problem 36P
The time interval required for
Explanation of Solution
Strings experiences tension due to different masses the Mass
Write the expression for heavier mass.
Here,
Rearrange the above equation.
Write the expression for lighter mass.
Here,
Rearrange the above equation.
Write the expression for moment of inertia for the pulley as.
Here,
Write the expression for torque produced in motion of the pulley.
Here,
Write the expression force torque in terms of force.
Here,
Write the expression for net force.
Substitute
Substitute
Write the expression for angular acceleration.
Here,
Substitute
Rearrange the above expression for
Write the expression of motion to calculate time.
Here,
Substitute
Conclusion:
Substitute
Substitute
Thus, the time interval required for
(b)
The effect onthe pulley the moment pulley is mass less.
(b)

Answer to Problem 36P
The time reduces by
Explanation of Solution
Write the expression for acceleration of pulley.
Here,
Substitute
Write the expression for Timemoving down with acceleration
Here
Write the expression for percentage change in time.
Conclusion:
Substitute
Substitute
Substitute
Thus, the time reduces by
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Chapter 10 Solutions
Physics for Scientists and Engineers with Modern, Revised Hybrid (with Enhanced WebAssign Printed Access Card for Physics, Multi-Term Courses)
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