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A rock dropped from a car window initially moves forward as the same speed as the car and falls downwards due to gravitational attraction. The forward speed falls off from the air resistance. This rate of speed reduction depends on the mass and density of the rock and the initial air velocity. For simplicity consider the case of dropping the rock in a vacuum (no air), or that the rock is so large that its momentum and inertia reduce the reduction of its forward speed only slightly while the rock is falling.
To the observer in the car w the rock then falls down from the point dropped maintaining its forward speed.
The rock accelerates downward at 32 ft/sec2 until it contacts the road some distance "d" below it. Using the expression:
d = vt + (1/2)at2
where d is distance travelled downward, v is starting downward velocity, a is acceleration of gravity, and t is time. It is possible to calculate "t". It is just as easy to time the fall of the rock by experimentation.
The forward movement of the rock lasts for time "t". It was moving at some forward speed "v". It travels
d = vt . Where d is distance travelled forward, v is starting forward velocity, and t is time.
The rock lands under the hand that dropped it at distance "d" down the road.
What else can I help you with?
If you drop a rock what is the force acting on it?
Gravitaional force is the force pulling on it from the Earth.
What is an example of an free fall?
A rock that is dropped, and a apple falling from a tree.Hold a ball in your hand, stretch out your arm, and drop the ball. As it is moving towards the ground, it is in free fall.
Do a rock sitting on top of a cliff has no energy?
If it's not moving it doesn't have any energy
What is an example free fall?
A rock that is dropped, and a apple falling from a tree.Hold a ball in your hand, stretch out your arm, and drop the ball. As it is moving towards the ground, it is in free fall.
If our rock is sitting in the dirt the normal force from the ground and the blank are acting on it?
If the rock is sitting in the dirt, the normal force from the ground and the force of gravity are acting on it. The normal force is the force exerted by the ground supporting the rock, while the force of gravity is pulling the rock downwards towards the Earth.
If you drop a rock and simultaneously throw a rock horizontally from the same height which one will hit the ground first?
The general theories of Physics say that both rocks will hit the ground at the same time.
If you drop a rock what is the force acting on it?
Gravitaional force is the force pulling on it from the Earth.
If you are standing on the moon and holding a rock and let it go what will happen to the rock?
The rock will fall to the ground because the moon has its own gravitational pull, albeit weaker than Earth's. Without any external force to keep the rock in place, it will drop towards the moon's surface.
What is the definition of rock flour?
Rock flour consists of the remains of once proud rocks, ground to a fine powder by the abrasion and scouring caused by the grinding action of moving, rock embedded glaciers.
Is a rock more stable on a hillside or a plain?
A plain. On flat ground, the chance of a rock moving is fairly small. On a hillside, any slight force on the rock will cause it to roll down the hill.
Is rock more stable or a hillside or a plain?
A plain. On flat ground, the chance of a rock moving is fairly small. On a hillside, any slight force on the rock will cause it to roll down the hill.
What is it called when water passes through a rock?
When water passes through a rock, it's called infiltration. This process involves water seeping into the ground and moving through the tiny spaces within the rock.
Who does water Pokemon defeat?
fire, ground, rock, fire normal, ground normal, rock normal, fire electric, fire ice, fire fighting, fire poison, fire ground, fire flying, fire psychic, fire bug, fire rock, fire ghost, fire dark, fire steel, electric ground, electric rock, ice ground, ice rock, fighting ground, fighting rock, poison ground, poison rock, ground flying, ground psychic, ground bug, ground rock, ground ghost, ground dark, ground steel, flying rock, psychic rock, bug rock, rock flying, rock psychic, rock ghost, rock dark, and rock steel-types are super weak to water.
Can a body at rest b regarded in the state of motion?
Motion is measured as relative to a set point.A rock sitting on the ground is at rest in relation to the groundThe rock and the ground are spinning with the surface of the planet.The planet is moving in the solar systemAnd so on
When was Rock until You Drop created?
Rock until You Drop was created in 1981-01.
When was Rock 'til You Drop created?
Rock 'til You Drop was created on 1991-09-24.
NAME A ROCK what you can dig out of the ground?
you can dig any rock out of the ground
