Deep in the forest, a 17.0-g leaf falls from a tree and drops straight to the ground. If its initial height was 5.30 m and its speed just before landing was 1.3 m/s, how much nonconservative work was done on the leaf?

Principles of Physics: A Calculus-Based Text
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ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter7: Conservation Of Energy
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10. Deep in the forest, a 17.0-g leaf falls from a tree and drops straight to the
ground. If its initial height was 5.30 m and its speed just before landing was
1.3 m/s, how much nonconservative work was done on the leaf?
11. A block of mass mi 2.40 kg is connected to a second block of mass m₂ =
1.80 kg, as shown in the sketch. When the blocks are released from rest, they
move through a distance d = 0.500 m, at which point m₂ hits the floor. Given
that the coefficient of kinetic friction between m₁ and the horizontal surface
is k = 0.450, find the speed of the blocks just before m₂ lands.
7-
17
111-
-h
Transcribed Image Text:10. Deep in the forest, a 17.0-g leaf falls from a tree and drops straight to the ground. If its initial height was 5.30 m and its speed just before landing was 1.3 m/s, how much nonconservative work was done on the leaf? 11. A block of mass mi 2.40 kg is connected to a second block of mass m₂ = 1.80 kg, as shown in the sketch. When the blocks are released from rest, they move through a distance d = 0.500 m, at which point m₂ hits the floor. Given that the coefficient of kinetic friction between m₁ and the horizontal surface is k = 0.450, find the speed of the blocks just before m₂ lands. 7- 17 111- -h
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