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If one body is positive, and the other is negative, they tend to attract!
Answer:
0.289
Explanation:
Since the body is in equilibrium ( no net movement), then the total upward force must equal the total downward force and also total forward force must equal total backward force
Tension in the rope inclined at 30⁰ to the vertical hhas vertical and horizontal components
vertical component = Tcos 30⁰ and horizontal component = T sin30⁰
T cos 30⁰ = the downward force = mg where m is the mass of 5kg and g is 9.8 m/s² acceleration due to gravity
T cos 30⁰ = 49
T in the inclined rope to the vertical = 49 / cos 30⁰ = 56.58 N
Horizontal component of the tension in the rope = T sin30⁰ = 56.58 sin 30⁰ = 28.29 N
since the 10kg was not moving the frictional force impeding the movement = the horizontal component of the T along the positive x axis since the frictional force will act along the negative x axis
Fr = 28.29 N
coefficient of static friction = Fr / normal (mg) = 28.29 / (10 × 9.8) = 0.289
The magnetic force on a moving charge, depends on three four things: the magnitude of the charge, the velocity of the charge, the strength of the magnetic field, and the angle between the velocity and the magnetic field.
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