How to Calculate Tension Underwater

To calculate tension underwater, you'll need to consider the buoyant force acting on the object and the weight of the object in water. Here are the steps to calculate tension underwater:

1. Determine the buoyant force:

- Buoyant force = Weight of the water displaced by the object

2. Calculate the weight of the object in water:

- Weight in water = Weight of the object - Buoyant force

3. Calculate tension:

- Tension = Weight of the object in water - Weight of the object in air

Here's an example to illustrate the calculation:

Example:

An object with a weight of 100 N in air is submerged in water, and the buoyant force acting on it is 50 N. Calculate the tension underwater.

Solution:

1. Determine the buoyant force:

Buoyant force = 50 N

2. Calculate the weight of the object in water:

Weight in water = 100 N - 50 N = 50 N

3. Calculate tension:

Tension = 50 N - 100 N = -50 N

The negative sign indicates that the tension is acting in the upward direction, opposing the weight of the object in water. This means that the object will experience an upward force of 50 N due to tension.