I have no idea how to start this problem. I don't want the answer just how to start.A supertanker (mass = 1.70x10^8kg) is moving with a constant velocity. Its engines genterate a forward thrust of 7.40x10^5N. Determine (a) magnitude of the resistive force exerted on the tanker by the water and (b) the magnitude of the upward buoyant force exerted on the tanker by the water.
A supertanker (mass = 1.57E+8 kg) is moving with a constant velocity. Its engines generate a forward thrust of 7.47E+5 N. Determine the magnitude of the resistive force exerted on the tanker by the water.
7.47×10^5 N is correct, but i need to know how
To start solving this problem, it's important to understand the concept of equilibrium. In this scenario, we have a supertanker moving with a constant velocity. This means that the net force acting on the supertanker is zero.
To solve the problem, we'll need to analyze the forces acting on the supertanker:
(a) Magnitude of the resistive force exerted on the tanker by the water:
Since the supertanker is moving with a constant velocity, we can conclude that the magnitude of the resistive force exerted on the tanker by the water is equal in magnitude and opposite in direction to the forward thrust generated by the engines. This ensures that the net force is zero.
So, to find the magnitude of the resistive force, we use the given value for the forward thrust generated by the engines, which is 7.40x10^5N.
Magnitude of the resistive force = 7.40x10^5N
(b) Magnitude of the upward buoyant force exerted on the tanker by the water:
Buoyant force is exerted on an object immersed in a fluid and is equal to the weight of the fluid displaced by the object.
Since the tanker is floating and in equilibrium, the upward buoyant force on the tanker is equal in magnitude and opposite in direction to the weight of the tanker. The weight of the tanker can be calculated using the formula:
Weight = mass x gravitational acceleration
The given mass of the tanker is 1.70x10^8 kg.
Gravitational acceleration is approximately 9.8 m/s^2.
Magnitude of the upward buoyant force = weight of the tanker = 1.70x10^8 kg x 9.8 m/s^2
By calculating this value, you can find the magnitude of the upward buoyant force exerted on the tanker by the water.
Remember, these calculations are based on the assumption that the tanker is floating and that equilibrium is maintained.