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What is an example of terminal velocity?
An example would be "any object that is moving through the air, water or other substance at a rate such that it cannot possibly go faster without additional force being applied." "Terminal Velocity" in dropping a rock from an airplane might mean "the fastest the rock can possibly fall on its own." Once the rock reached that velocity, it would not be able to go faster despite that it had accelerated to that point without additional force (or increased gravity) being applied to the rock. rock from plane when force down = force up force down = mg (newtons) force up = force of air resistance (velocity ^2* drag coefficient ) newtons. you can use known terminal velocity to calculate drag coefficient if mass is known.
What if a force is applied but nothing happens?
The force of friction is equal in magnitude to the applied force and opposite in its direction. The force of friction may also increase if you increase the applied force, up to a certain limit.
A rock bounces down a mountainWhen will its kinetic energy be greatest?
The only answer that's true in any case is: When it's speed is greatest. A free-falling object without air resistance continues to accelerate as long as it falls, so its maximum speed occurs at the bottom of the fall, just before it hits the ground, and we can be sure that that's also the instant of greatest kinetic energy. But the rock is "bouncing", so we don't know how its speed may be changing. The greatest speed may not be at the bottom of the mountain, so the best we can say is that whenever and wherever during the tortuous trip it has the greatest speed, that's also the moment of greatest kinetic energy.
Find the effort force needed to lift a 2000 N rock using a jack with mechanical advantage of 10?
200
A force o 100 newtons was necessary to lift a rock a total of 150 joules of work was done how far was the rock lifted?
W = Fd; d = W/F = 150 J/100 N = 1.5 m
Buoyant force of a rock submerged in water compared to the weight of the water displaced by the rock?
The buoyant force acting on the rock submerged in water is equal to the weight of the water displaced by the rock. This is known as Archimedes' principle, which states that the buoyant force on an object is equal to the weight of the fluid it displaces.
8 A rock suspended by a scale weighs 5 N out of water and 3 N when submerged in water What is the buoyant force on the rock?
The buoyant force accounts for the missing 2 N when the rock is in water. The 2 N is the weight of the volume of water equal to the volume of the rock ... the water that the rock 'displaces' (pushes aside) when it enters the water.
How does the buoyant force of a rock emerged in water compare to the weight of the water displaced by the rock?
The buoyant force acting on a rock in water is equal to the weight of the water displaced by the rock, as described by Archimedes' principle. This means that the buoyant force is equal to the weight of the volume of water that is pushed aside by the rock when it is submerged.
What is the buoyant force acting on the rock when A rock with volume of 0.3m3 is fully submerged in water having a density of water is 1000 kgm3?
The buoyant force on a submerged object is equal to the weight of the displaced fluid. The density of the water is 1,000 kg/m3, so its weight is 1,000 N/m3. The volume of the rock is 0.3 m3. The buoyant force = weight of the displaced water = (0.3 x 1,000) = 300 N.
A rock suspended by a weighing scale weighs 5 N out of water and 3 N when submerged in water What is the buoyant force on the rock?
The buoyant force is equal to the weight of the fluid displaced. In this case, there are 2 Newtons of force, leading to the buoyant force equaling 2 Newtons.
A 58 kg rock with a volume of 21 L is completely submerged in water The density of water is 1 kgL What is the buoyant force on the rock?
The mass of the rock doesn't make any difference. Anything with a volume of 21 L, when it'scompletely submerged, displaces 21 L of water, and produces a buoyant force equal to theweight of 21 L of water.21 L of water has a mass of 21 Kg. Its weight is (MG) = (21 x 9.8) = 205.8 Newtons = 46.3 pounds. (rounded)
Does a rock weigh more in water?
No, a rock does not weigh more in water. When submerged in water, the rock displaces an amount of water equal to its own volume, leading to a buoyant force that reduces its apparent weight. So, the rock will weigh less in water compared to in air.
Is it easier to lift a rock in water rather than lifting a rock in air?
An object submerged in a liquid or gas has an upward force, called buoyancy, acting on it that is equal to the weight of the liquid or gas displaced by the object. For example, pure water weighs about 62.4 pounds per cubic foot. Therefore, an object with a volume of 1 cubic foot that is completely submerged in pure water has an upward force of 62.4 pounds acting on it, making it feel 62.4 pounds lighter while it is completely in the water.
How do rocks sinks?
A rock sinks because it is pushed down by a force of gravity and it is often denser than the water itself so the buoyancy pushing up on the rock is not strong enough to hold the rock on top of the water so therefore the rock will sink.
What symbol on a regulatory marker is used to warn of a rock or other submerged hazard?
A diamond is the symbol on a regulatory marker that is used to warn of rocks or other submerged hazards.
What symbol or regulatory marker is used to warn of a rock or other submerged hazard?
A diamond is the symbol on a regulatory marker that is used to warn of rocks or other submerged hazards.
When using a lever to lift a 45 N rock a force in or a force out?
When using a lever to lift a 45 N rock, the force required would be an input force. This is because you are applying the force to the lever to lift the rock against the force of gravity. The output force would be the force exerted by the lever on the rock.
