The helicopter view in Fig. P3.15 shows two people pulling on a stubborn mule. The person on the right pulls with a force F → 1 of magnitude 120 X and direction of θ 1 = 60.0°. The person on the left pulls with a force F → 2 of magnitude 80.0 N and direction of θ 2 = 75.0°. Find (a) the single force that is equivalent to the two forces shown and (b) the force that a third person would have to exert on the mule to make the resultant force equal to zero. The forces are measured in units of newtons (symbolized N). Figure P3.15
The helicopter view in Fig. P3.15 shows two people pulling on a stubborn mule. The person on the right pulls with a force F → 1 of magnitude 120 X and direction of θ 1 = 60.0°. The person on the left pulls with a force F → 2 of magnitude 80.0 N and direction of θ 2 = 75.0°. Find (a) the single force that is equivalent to the two forces shown and (b) the force that a third person would have to exert on the mule to make the resultant force equal to zero. The forces are measured in units of newtons (symbolized N). Figure P3.15
Solution Summary: The author explains that the net force along x -axis is 39.3N.
The helicopter view in Fig. P3.15 shows two people pulling on a stubborn mule. The person on the right pulls with a force
F
→
1
of magnitude 120 X and direction of θ1 = 60.0°. The person on the left pulls with a force
F
→
2
of magnitude 80.0 N and direction of θ2 = 75.0°. Find (a) the single force that is equivalent to the two forces shown and (b) the force that a third person would have to exert on the mule to make the resultant force equal to zero. The forces are measured in units of newtons (symbolized N).
The kinetic energy of a pendulum is greatest
Question 20Select one:
a.
at the top of its swing.
b.
when its potential energy is greatest.
c.
at the bottom of its swing.
d.
when its total energy is greatest.
Part a-D pl
The figure (Figure 1) shows representations of six
thermodynamic states of the same ideal gas sample.
Figure
1 of 1
Part A
■Review | Constants
Rank the states on the basis of the pressure of the gas sample at each state.
Rank pressure from highest to lowest. To rank items as equivalent, overlap them.
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0
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F
A
D
E
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Chapter 3 Solutions
Bundle: Physics for Scientists and Engineers with Modern Physics, Loose-leaf Version, 9th + WebAssign Printed Access Card, Multi-Term
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