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

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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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.

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.

there are no contact forces mentioned on the list of choices that you've provided.