Answer
3.55J
Work Step by Step
Block A = 1.3
Block B = 2.1
Angle = 30˚
h = 0.25m
$\Delta k = M_{b}gh - M_{a}gd$
$d = hsin\theta$
= 0.25sin30
= 0.125
$\Delta k = g(M_{b}h - M_{a}d)$
$\Delta k = 9.8(2.1*0.25 - 1.3*0.125)$
= 3.55 J
Fundamentals of Physics Extended (10th Edition)
by Halliday, David; Resnick, Robert; Walker, Jearl
Published by
Wiley
ISBN 10:
1-11823-072-8
ISBN 13:
978-1-11823-072-5
Chapter 8 - Potential Energy and Conservation of Energy - Problems - Page 208: 69
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