Concept explainers
Check Your Understanding Why would it hurt more if you snapped your hand with a ruler than with a loose spring, even if the displacement of each system is equal?
The reason for hand to get hurt more if one snapped hand with a ruler than with a loose spring, even if the displacement of each system is equal.
Answer to Problem 15.1CYU
The ruler will hurt more as ruler will have more impulsive force than a loose spring.
Explanation of Solution
Introduction :
Impulse is defined as the change in momentum.
Also, Impulse force is defined as time take to change momentum
When hand is snapped with ruler or spring, both will have same impulse, that is both stop after hitting.
Given that the displacement of hand in both system − ruler and spring is same.
Now the same displacement of spring will take more time as compared to the displacement of ruler. Thus, time taken to change impulse is more in spring than in ruler.
Because force is indirectly proportional to time taken, the impulsive force is less in spring as compared to ruler.
Conclusion:
Thus, ruler will hurt more than the loose spring.
Want to see more full solutions like this?
Chapter 15 Solutions
University Physics Volume 1
Additional Science Textbook Solutions
Conceptual Physics (12th Edition)
Sears And Zemansky's University Physics With Modern Physics
Physics for Scientists and Engineers with Modern Physics
Cosmic Perspective Fundamentals
Lecture- Tutorials for Introductory Astronomy
Conceptual Physical Science (6th Edition)
- Some people modify cars to be much closer to the ground than when manufactured. Should they install stiffer springs? Explain your answer.arrow_forwardCheck Your Understanding How high above the bottom of its arc is the particle in the simple pendulum above, when its speed is 0.81 m/s?arrow_forwardCheck Your Understanding Identify an object that undergoes uniform circular motion. Describe how you could trace the SHM of this object.arrow_forward
- Check Your Understanding An engineer builds two simple pendulums. Both are suspended from small wires secured to the ceiling of a room. Each pendulum hovers 2 cm above the floor. Pendulum 1 has a bob with a mass of 10 kg. Pendulum 2 has a bob with a mass of 100 kg. Describe how the motion of the pendulums will differ if the bobs are both displaced by 12°.arrow_forwardCheck Your Understanding Identify one way you could decrease the maximum velocity of a simple harmonic oscillator.arrow_forwardCheck Your Understanding Find x(t) for the mass-spring system in Example 8.11 ii the particle starts from x0=0 at t=0. what is the particle’s initial velocity?arrow_forward
- Use the data in Table P16.59 for a block of mass m = 0.250 kg and assume friction is negligible. a. Write an expression for the force FH exerted by the spring on the block. b. Sketch FH versus t.arrow_forwardShow that the time rate of change of mechanical energy for a damped, undriven oscillator is given by dE/dt = bv2 and hence is always negative. To do so, differentiate the expression for the mechanical energy of an oscillator, E=12mv2+12kx2, and use Equation 12.28.arrow_forwardDo you think there is any harmonic motion in the physical world that is not damped harmonic motion? Try to make a list of five examples of undamped harmonic motion and damped harmonic motion. Which list was easier to make?arrow_forward
- Give an example of a damped harmonic oscillator. (They are more common than undamped or simple harmonic oscillators.)arrow_forwardIf a car has a suspension system with a force constant of 5.00104 N/m , how much energy must the car’s shocks remove to dampen an oscillation starting with a maximum displacement of 0.0750 m?arrow_forwardExplain why you expect an object made of a stiff material to vibrate at a higher frequency than a similar object made of a more pliable material.arrow_forward
- University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice UniversityClassical Dynamics of Particles and SystemsPhysicsISBN:9780534408961Author:Stephen T. Thornton, Jerry B. MarionPublisher:Cengage LearningPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning