WileyPLUS MywileyPLUS l Contact Us I Le9 S Halliday, Fundamentals of Physics, 10

Question

WileyPLUS MywileyPLUS l Contact Us I Le9 S Halliday, Fundamentals of Physics, 10e Physics (Phys211-Phys214) actice Gradebook ORION Downloadable eTextbook nment FULL SCREEN PRINTER VERSION BACK Chapter 05, Problem 051 The figure shows two blocks connected by a cord (of negligible mass) that passes over a frictioniess machine. Block 1 has mass m -1.90 kg; block 2 has mass m2 -2.50 kg. What are (a) the magnitude of the blocks puliley (also of negligible mass). The arrangement is known as Atwood's acceleration and (b) the tension in the cord? (a) Number (b) Number Click if you would like to Show Work for this question: Units Units Qpen Show Work SHOW HENT GO TUTORIAL LINK TO TEXT Version 4.24.5.1 Inc All Rights Reserved. A Division of 2ohn Wiley &Sons; Inc

Explanation / Answer

T - m1 g = m1 a
T - m2 g = - m2 a (the sign here is neg since the heavier mass will accelerate down)

subtract equations to solve for a:

a = (m2-m1)g/(m1+m2) = 0.6 kg *9.8m/s/s / 4.4 kg = 1.336m/s/s

substitute into either equation to find T:

T - 1.9kg *9.8m/s/s = 1.9kg*1.336 m/s/s => T=21.158N

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