The 7.4 N weight is in equilibrium under

Physics

1 answer:

zhenek [66]1 year ago

7 0

a) Magnitude of force is 5.37N

b) Angle of force is - 37.88°

<h3>What is force?</h3>

In physics, we define a force is an influence that can change the motion of object. A force can cause an object with mass to change to accelerate.

Given force from above is 5.9N

∑Fₓ = F₁ₓ + F₂ₓ+F₃ₓ = 0

F₂ cos 44° + Fₓ = 0

Fₓ = - 5.9 cos44°

= - 4.24 N

Given force that acts downward as 7.4N

∑Fy= Fy1+ Fy2 +Fy3 =0

Fy+ 5.9 sin 44° - 7.4= 0

F = 3.30 N

F =√Fₓ² +Fy²

= 5.37 N

b) angle of force= tan⁻¹ (3.30/-4.24)

= - 37.88°

To know more about force, refer

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If two charged objects in a laboratory are brought to a distance of 0.22 meters away from each other. What is

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$q_2=2.47\times 10^{-4}\ C$

Explanation:

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Let q₂ is the charge on the other sphere. The electrostatic force between two charges is given by the formula as follows :

$F=\dfrac{kq_1q_2}{r^2}\\\\q_2=\dfrac{Fr^2}{kq_1}\\\\q_2=\dfrac{4550\times (0.22) ^2}{9\times 10^9\times 9.9\times 10^{-5}}\\\\q_2=2.47\times 10^{-4}\ C$