Question

A 20 kg weight is suspended from a string. What is the tension on the string

Answer 1

The weight is in equilibrium, so the two forces acting on it (tension T pulling upward, and its own weight W pulling it downward) cancel each other. By Newton's second law,

∑ F = T - W = 0

so that

T = W

Calculate the object's weight:

W = (20 kg) (9.8 m/s²) = 196 N

So the tension is T = 196 N as well.

Answer 2

The tension on the spring when a 20 kg weight is suspended is 200N.

Tension is a pulling force. It can be defined as the force exerted by a string when it is subjected to pull.

Given that a weight of 20 kg is suspended, the tension is:

Tension = mass * acceleration due to gravity

Tension = 20kg * 10 m/s² = 200N

Hence, the tension on the spring when a 20 kg weight is suspended is 200N.

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