9. Work & Energy
Work By Springs
8:37 minutes
Problem 7.88
Textbook Question
Textbook QuestionMany cars have “3 mi/h (5 km/h) bumpers” that are designed to compress and rebound elastically without any physical damage at speeds below 5 km/h. If the material of the bumpers permanently deforms after a compression of 1.5 cm, but remains like an elastic spring up to that point, what must be the effective spring constant of the bumper material, assuming the car has a mass of 1050 kg and is tested by driving it into a solid wall?
Verified Solution
This video solution was recommended by our tutors as helpful for the problem above
Video duration:
8mPlay a video:
119
views
Was this helpful?
Related Videos
Related Practice
Showing 1 of 8 videos