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3 years ago

What is an essential characteristic of an object in equilibrium

Physics

1 answer:

Alecsey [184]3 years ago

6 0

Answer:

The essential characteristics of an object in equilibrium is acceleration of the object must be zero.

Explanation:

Equilibrium: An object acted upon by several forces is said to be in equilibrium if it does no it moves or rotate. Equilibrium can be defined as the state of stability of an object.

Condition for equilibrium

(i) The resultant force acting on the object must me equal to zero.

(ii) The sum of moment acting on the object must be equal to zero.

But.

F = ma..................... Equation 1

Where F = net force , m = mass, a = acceleration.

from the equation above,

For F = 0 N, a must be equal to zero.

<em>From the above, the essential characteristics of an object in equilibrium is acceleration must be zero</em>

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A 20-Kg child is on a swing attached to 3.0 m-long chains. The child swings back and forth, swinging out to a 60-degree angle. (

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Answer:

v = 29.4 m / s

Explanation:

For this exercise we can use the conservation of mechanical energy

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final point. Higher

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cos 60 = y / L

y = L cos 60

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3 years ago

In an aqueous solution where the H+ concentration is 1 x 10-6 M, the OH concentration must be:

vesna_86 [32]

Answer:

D. 1×10⁻⁸ M

Explanation:

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3 years ago

Batman (mass = 96.1 kg) jumps straight down from a bridge into a boat (mass = 458 kg) in which a criminal is fleeing. The veloci

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Answer:

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Explanation:

Applying the law of conservation of momentum,

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m'u'+mu = V(m+m').................... Equation 1

Where m' = mass of the Batman, u' = initial velcoity of the batman, m = mass of the boat, u = initial velocity of the boat, V = common velocity.

make V the subject of equation 1

V = (m'u'+mu)/(m+m')............... Equation 2

Given: m' = 96.1 kg, u' = 0 m/s, m = 458 kg, u = +11.3 m/s.

Substitute these values into equation 2

V = [(96.1×0)+(458×11.2)]/(96.1+458)

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Answer:

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