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pochemuha
3 years ago
12

180 N 40 kg 140 N Net Force = Also how do you find the net force?

Physics
1 answer:
sergeinik [125]3 years ago
6 0

Answer:

Force is a vector, so vector adding the forces will give you the net force.

As you have only given us magnitudes and not directions of forces, we can help you no further than telling you the magnitude of the net force will be in the range  180 - 140 = (40 N ≤ Fnet ≤ 320 N) = 180 + 140

Explanation:

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A 1.0 kg copper rod rests on two horizontal rails 1.0 m apart and carries a current of 50 A from one rail to the other.
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Answer

given,

mass of copper rod = 1 kg

horizontal rails = 1 m

Current (I) = 50 A

coefficient of static friction = 0.6

magnetic force acting on a current carrying wire is

           F = B i L

Rod is not necessarily vertical

F_x =i L B_d

F_y= i L B_w

the normal reaction N = mg-F y

static friction       f = μ_s (mg-F y )

horizontal acceleration is zero

F_x-f = 0

iLBd = \mu_s(mg-F_y )

 B_w = B sinθ

 B_d = B cosθ

iLB cosθ= μ_s (mg- iLB sinθ)

B = \dfrac{\mu_smg}{i(cos\theta +\mu_s sin\theta)}

\theta =tan{-1}{\mu_s}

\theta =tan{-1}{0.6}

\theta = 31^0

B = \dfrac{0.6\times 1 \times 9.8}{50(cos31^0 +0.6 sin31^0)}

       B = 0.1 T

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3 years ago
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Answer:

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Explanation:

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3 years ago
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larisa86 [58]

Answer:

<h2>9.17 m/s²</h2>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m}  \\

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