This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: lim (kl9356) – Homework 9 – Weathers – (17104) 1 This printout should have 10 questions. Multiplechoice questions may continue on the next column or page – find all choices before answering. 001 10.0 points A timevarying net force acting on a 2 . 5 kg particle causes the object to have a displace ment given by x = a + b t + d t 2 + e t 3 , where a = 2 . 2 m , b = 3 . 1 m / s , d = 4 . 4 m / s 2 , and e = 2 m / s 3 , with x in meters and t in seconds. Find the work done on the particle in the first 2 . 5 s of motion. Answer in units of J. 002 (part 1 of 3) 10.0 points A 1850 kg car accelerates uniformly from rest to a speed of 11 . 4 m / s in 3 . 25 s. Find the work done by the net force on the car during this time interval Answer in units of J. 003 (part 2 of 3) 10.0 points Find the average power delivered by the net force to the car in this time interval. Answer in units of w....
View
Full Document
 Fall '08
 Weathers
 Magnetism, Force, Work, lim, net force

Click to edit the document details