To establish equilibrium all torques need to be justified , the body needs to be in translational as well as rotational equilibrium.
<h3>What is equilibrium and why balancing the torques is not enough to establish equilibrium?</h3>
- Equilibrium is a condition of balance between forces, or influences from opposite ways .
- For a body to attain equilibrium , need to have both translational as well as rotational equilibrium.
- Force is responsible for translational equilibrium and torque is responsible for rotational equilibrium.
- Considering a rod , and applying equal forces at the ends of the rods in upward direction, and seeing the net torque to be zero.
- Hence the body needs to be in both translational and rotational equilibrium to attain equilibrium.
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For the same reason that you can skate around a curve at constant speed but not with constant velocity.
The DIRECTION you're going is part of your velocity, but it's not part of your speed.
If the DIRECTION changes, that's a change of velocity.
The object doesn't have to change speed to have a different velocity. A change of direction is enough to do it.
And any change of velocity is called acceleration.
Answer:
Proton’s speed, a short time later when it reaches a point of lower potential is 1.4 x 10⁵ m/s
Explanation:
Given;
initial speed of proton, u = 2.5 x 10⁵ m/s
initial potential, V = 1500 V
mass of proton = 1.67 x 10⁻²⁷ kg
Work done, W = eV= ΔK.E = ¹/₂mu²
eV = ¹/₂mu² (J)
where;
e is the charge of the proton in coulombs
V is the electric potential in volts
m is the mass of the proton in kg
u is the speed of the proton in m/s
Therefore, proton’s speed a short time later when it reaches a point of lower potential is 1.4 x 10⁵ m/s
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