Question

Problem 13.19 - Enhanced - with Hints and Feedback A48-1b suitcase slides from rest 20 ft down the ramp. The suitcase has an initial velocity down the ramp of VA = 7 ft/s and the coefficient of kinetic friction along AB is liks = 0.17.(Figure 1) How long does it take to go from A to C? Express your answer to three significant figures and include the appropriate units. ► View Available Hint(s) MÅ R O P ? t = 1.41 S Submit Previous Answers Figure < 1 of 1 > X Incorrect; Try Again; 5 attempts remaining Part B Determine the point where it strikes the ground at C Express your answer to three significant figures and include the appropriate units. View Available Hint(s) R . Value Units

Answer 1

y = WORD L 30 M = 480x30 N = 24V F = WKN = 0.17* 24V 7.0667 u apply Newton's low in xadira I fx = max wsino-f=ma W sino f = 48 sin 30 - 7.0067 = (48a a - 1.36 t/see velocity of paint B = u²+ zas V = +2*41.36 x 20 vo = 22.436 +/ time of travel from A to B V = ut at 22.436 = 7+ 1.36 xt ap t = calculate the range R = (v.), t = (vexo ) + R = 22.436 Cox 304 tBC - 0 time at flight from B to a sy = (sy) + (b) toc + 2 g to be = (sy). + (rysino) tac + u g o 1.3588 sec

4 - 0 + 22, 436 - 3 = x ta c + 3 x 3 2. 2 3 4 5 4 = 1.218 toe + 16.1tos © 1 tbc = 0.2597 toom 0 R 22.436 Cassoxo, 2587 IR = 5.0468t I A pont B TAC = TABt toc = 1.3588 +0.2597 I tae = 1.6185 see
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