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andrey2020 [161]
2 years ago
12

A 2 kg object with a weight of 20 N is being pulled up by a rope with a tension of 12N what is the acceleration of the object

Physics
1 answer:
son4ous [18]2 years ago
7 0

Answer:

The object accelerates downward at 4 m/s² since the tension on the rope is less than weight of the object.

Explanation:

Given;

mass of the object, m = 2 kg

weigh of the object, W = 20 N

tension on the rope, T = 12 N

The acceleration of the object is calculated by applying Newton's second law of motion as follows;

T = F + W

T = ma + W

ma = T - W

a = \frac{T-W}{m} \\\\a = \frac{12 - 20}{2} \\\\a = -4 \ m/s^2 (the negative sign indicates deceleration of the object)

The object accelerates downward at 4 m/s² since the tension on the rope is less than weight of the object.

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Answer:

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Explanation:

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k =  \frac{1}{2} m {v}^{2}  \\

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We have the final answer as

<h3>507 J</h3>

Hope this helps you

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  • In order to find v₁, we can use the same kinematic equation that we used to get H, but now, we know that v₀ = 0.
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  • ⇒ D = 15 * H

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