Question

college physics exam

5. Use either Newton's Laws or Conservation of Energy to solve the following problem. (Do not do beth A 10 kg box launched from the bottom of a 30 incline with an initial velocity of 12 m/s slides 8.0 m up the ramp before stopping. What is the coefficient of friction between the ramp and the box? m-10 kg 8.0 m T 12 m/s 300 llag kto the to mc Three fon ct on a bo

Answer 1

Aus 5. Using Work Energy Theorem lot Work done by all bonces = Change in kinetic Energy masina a ff = fiction=len =ling isso O 7 2 - mg sine x8m - ff x8 = 1/2 v6² - 1 m ve ² (viztanys) Eve=0) > ng sin 30°x8 – leping cos 30°x 8 = - M (12) ² | = 4x4-8 + 4 x 1.8x và = 1 = 72 27 39.2 + 67.89 u =72 Z 2 = 32.8 23 67.89 l = 72-39.2 de = 32.8 = [0.483 As 67.89