## 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) – F_{drag} = 0

Tension = (mass x gravity) + F_{drag}

T = (21 x 9.8) + 22

T = 205.8 + 22

t = 227.8

Now round it

**Tension** = 230 N

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