What is the primary force that helps suspension bridges use cables to hold their spans up?

Physics

2 answers:

Wittaler [7]2 years ago

7 0

Answer:

a) Tension Force

Explanation:

Since the platform suspended by the strings so here weight of the platform is counter-balanced by the force due to strings.

Here all the molecules of string has tendency to connect with each other so that the internal force between the molecules will help them to bound with each other.

Since we know that this force between the molecules are electromagnetic force due to electron sharing between each other

So this force is known as tension force between the molecules.

So here correct answer force the suspension bridges, cables will exert internal tensile force to counter-balance the weight of the platform.

So correct answer will be

Tension force

Whitepunk [10]2 years ago

3 0

Hello There!

If i remember correctly, it is tension force.

Hope This Helps You!
Good Luck :)

- Hannah ❤

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The force preventing sliding against one another of solid surfaces, fluid layers, and material components is known as friction. There are several kinds of friction: Two solid surfaces in touch are opposed to one another's relative lateral motion by dry friction.

Given the box resting on the inclined plane above has a mass of 20kg and the The incline sits at a 30 degree angle

We have to find the friction force between the box and the incline if the box does not slide down the incline

Since the frictional force F₁ must equal or exceed gravitational force F₂ down the incline:

F₁ = F₂

μmgcosΘ = mgsinΘ

μ = (mgsinΘ)/(mgcosΘ)

μ = tanΘ

μ = 0.577

Hence the friction force between the box and the incline if the box does not slide down the incline will be 0.577

Learn more about friction force here:

brainly.com/question/24386803

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