A block of m = 12 kg is placed against the vertical frontof a cart as shown below. What acceleration must thecart have so that block A does not fall? The coefficientof static friction between the block and the are is m, =0.4.a. 24.5 m/s2O b. none of theseО с. 36.8 m/s?O d. 6.1 m/s?О е. 18.4 m/s? A thin, uniform 12-kg bar that is 2 m long rotatesuniformly about a pivot at one end,making 5 complete revolutions every 3 seconds. Whatis the kinetic energy of thisbar? (Hint: Different points in the bar have differentspeeds. Break the bar up intoinfinitesimal segments of mass dm and integrate to addup the kinetic energies of all these segments.)a. 877 JO b. 439 Jc. 1097 JO d. none of theseO e. 658 J

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Description: A block of m = 12 kg is placed against the vertical frontof a cart as shown below. What acceleration must thecart have so that block A does not fall? The coefficientof static friction between the block and the are is m, =0.4.a. 24.5 m/s2O b. none of

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plock of m = 12 kg is placed against the vertical front a cart as shown below. What acceleration must the rt have so that block A does not fall? The coefficient static friction between the block and the are is mg = A ) а. 24.5 m/s2 O b. none of these О с. 36.8 m/s? O d. 6.1 m/s2 D e. 18.4 m/s²

plock of m = 12 kg is placed against the vertical front a cart as shown below. What acceleration must the rt have so that block A does not fall? The coefficient static friction between the block and the are is mg = A ) а. 24.5 m/s2 O b. none of these О с. 36.8 m/s? O d. 6.1 m/s2 D e. 18.4 m/s²

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 67P: A 2.0-kg block is on a perfectly smooth ramp that makes an angle of 30 with the horizontal. (a) What...

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