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What is the Tension?

A cable is used to raise a 21 kg urn from an underwater archeological site. There is a 22 N drag force from the water as the urn is raised at a constant speed.

What is the tension of the cable?

Newton’s Second Law: the sum of the forces on an object in a given direction equal the mass of the object times the acceleration of the object in that specific direction.

Tension – (mass x gravity) – Fdrag = 0

Tension = (mass x gravity) + Fdrag

T = (21 x 9.8) + 22

T = 205.8 + 22

t = 227.8

Now round it

Tension = 230 N

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