Question

Chagter 07,Problem 038 whereェ“ maten snd th initis oosition ofthe block t o.ta) what is thf kinetic enerp ofthe tock as a aia thran . asm, Cb) what is (a) Number (b) Number Clok iryou would like to show work tor this question Question Attempts, 0 of 10 used ia"rai ."

Answer 1

a)The kinetic energy of the block at x-2.5m from the work energy theorem is, K. -K. - total work done 2.5 2.5 K,-3.7x 2.5 (3.7)(2.5) - 9.25-5.208 4.04 J b)The kinetic energy is maximum when F(x) o 3.7-x2-(0 The kinetic energy of the block between x-0 and x-2.5m from the work energy theorem is, K. _K.-total work done K,-0-1 (3.7- K, 3.7x 3.7 (3.7(V3.7) 7.117- 2.372 4.745 J