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
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).
Two vectors, of magnitude 30 and 60 respectively, are added. Which one of the following choices is a possible answer for the magnitude of the resultant?
a)0
b)25
c)50
d)75
e)100
Given two vectors a = 5i + 5j and b = 6i − 4j, find the magnitude and direction with respect to the +x-axis of(a) a + b(b) 2a + b(c) a − b
vector A⃗A→ has components AxAx = -6.00 and AyAy = -8.00, then the magnitude of A⃗A→ is
14.014.0
−14.0−14.0
14.0−−−−√14.0
10.010.0
−10.0−10.0
Chapter 3 Solutions
Physics for Scientists and Engineers, Technology Update, Hybrid Edition (with Enhanced WebAssign Multi-Term LOE Printed Access Card for Physics)
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