FREE Trial

A 20 kg block on a horizontal surface is attached to a horizontal spring of spring const

Question:

A 20 kg block on a horizontal surface is attached to a horizontal spring of spring const ant k = 4.0kN/m. The block is pulled to the right so that the spring is stretched 10 cm beyond its relaxed length, and the block is then released from rest. The frictional force between the sliding block and the surface has a magnitude of 80 N.

(a) What is the kinetic energy of the block when it has moved 2.0 cm from its point of release?

(b) What is the kinetic energy of the block when it first slides back through the point at which the spring is relaxed?

(c) What is the maximum kinetic energy attained by the block as it slides from its point of release to the point at which the spring is relaxed?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Answer rating: 71% (14 reviews)

a The effect of a sliding friction is described in terms of energy dissipated as shown in Eq 831 We ...View the full answer


answer-question-section
Answered By
tutor-profile-image
Utsab mitra
I have the expertise to deliver these subjects to college and higher-level students. The services would involve only solving assignments, homework help, and others. I have experience in delivering these subjects for the last 6 years on a freelancing basis in different companies around the globe. I am CMA certified and CGMA UK. I have professional experience of 18 years in the industry involved in the manufacturing company and IT implementation experience of over 12 years. I have delivered this help to students effortlessly, which is essential to give the students a good grade in their studies.
3.50+ 2+ Reviews 10+ Question Solved
Related Book For  book-img-for-question
Fundamentals of Physics

Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

See More Books
Question Posted:
See More Questions

Related Video

Skateboarding is a fun and popular activity among young people, in which the participant stands on a small board with wheels and navigates different surfaces. It is considered an extreme sport and there are professional competitions for different disciplines like vertical and street skating. To start skateboarding, focus on maintaining balance and having fun. To control the board, use your feet and keep your body\'s center of mass over the skateboard. The most stable and safest riding position is to have your front foot just behind or on the front bolts of the board and your back foot close to the back of the board, near or on the heel. This position also makes quick kick turns easier. Once you have mastered the basics, you can learn various tricks to impress others. In terms of mechanics, skateboarding involves the principles of force and torque. The rider exerts force on the skateboard to make it move, and torque is used to turn the board or perform tricks. Friction between the wheels and the ground also plays an important role in allowing the rider to control the speed and direction of the board. Energy is also involved in skateboarding, specifically the transfer of potential energy to kinetic energy. When a rider jumps on a skateboard, they transfer potential energy stored in their muscles into kinetic energy, which propels the board forward. The rider can also transfer kinetic energy into potential energy by performing an aerial trick and then landing back on the board.

Students also viewed these Mechanics questions

The Managers Handbook 1st Edition - ISBN: 978-1394174072 - Free Book