Question

A 1,450-kg submarine rises straight up toward the surface. Seawaterexerts both an upward buoyant force of 16,140 N on the submarineand a downward resistive force of 1,030 N. What is the submarine'sacceleration?

Answer 1

The submarine's acceleration is 10.415 m/s².

Step-by-step explanation:

To calculate the submarine's acceleration, we need to use Newton's second law, which states that the net force acting on an object is equal to its mass multiplied by its acceleration. In this case, the net force is the difference between the upward buoyant force and the downward resistive force.

The upward buoyant force is 16,140 N, and the downward resistive force is 1,030 N. So the net force is 16,140 N - 1,030 N = 15,110 N. The mass of the submarine is 1,450 kg.

To calculate the acceleration, we can rearrange Newton's second law to solve for acceleration: acceleration = net force / mass = 15,110 N / 1,450 kg = 10.415 m/s².