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At a given instant of time an 8 kg rock is observed to be falling with an acceleration of 7 meters per s squared what is the magnitude of the force of air resistance acting on the rock at this instant?
StephenSpring
Normal acceleration is about 10 meters per second squared, so there is a force backward capable by itself of producing an acceleration of 3 meters per second square. Now use the formula. Now use the formula F=ma.
Wiki User
∙ 14y ago
The force of air resistance can be found using Newton's second law: force = mass x acceleration. Assuming the only forces acting on the rock are gravity and air resistance, the force of gravity would be 8 kg x 7 m/s^2 = 56 N. The air resistance force would have the same magnitude as gravity to keep the rock in equilibrium, so the force of air resistance on the rock would be 56 N.
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How does air resistance affect the acceleration of a falling object-How does air resistance affect the acceleration of a falling object?
It reduces the acceleration of the falling object due to friction.
Does air resistance increase or decrease the acceleration of a falling leaf from a tree?
Air resistance decreases the acceleration of a falling leaf from a tree. As the leaf falls, air resistance opposes its motion, slowing it down. This results in a lower acceleration compared to if the leaf were falling in a vacuum with no air resistance.
How does air resistance affect the acceleration of falling objects?
As a falling object accelerates through air, its speed increases and air resistance increases. While gravity pulls the object down, we find that air resistance is trying to limit the object's speed. Air resistance reduces the acceleration of a falling object. It would accelerate faster if it was falling in a vacuum.
What is the relationship between air resistance and the acceleration of falling objects?
Air resistance acts in the opposite direction to the motion of a falling object, which reduces the net force acting on the object and therefore its acceleration. As the object falls faster, air resistance increases, which further reduces its acceleration. This results in the object reaching a terminal velocity where the forces of gravity and air resistance are balanced.
What was Galileo's hypothesis in the falling objects?
Galileo's hypothesis in the falling objects experiment was that all objects, regardless of their weight, fall at the same rate in the absence of air resistance. He believed that the acceleration due to gravity was constant for all objects. This hypothesis later led to his law of falling bodies.
How does air resistance affect the acceleration of a falling object-How does air resistance affect the acceleration of a falling object?
It reduces the acceleration of the falling object due to friction.
Does air resistance increase or decrease the acceleration of a falling leaf from a tree?
Air resistance decreases the acceleration of a falling leaf from a tree. As the leaf falls, air resistance opposes its motion, slowing it down. This results in a lower acceleration compared to if the leaf were falling in a vacuum with no air resistance.
Does air resistance increase or decrease the acceleration of a falling obect?
Well, the more the air resistance, the lower the acceleration.
How does air resistance affect the acceleration of a falling abject?
Air resistance creates friction and slows a falling object.
How would the observed value of acceleration be affected if the falling body used were heavier?
If the falling body were heavier, the observed value of acceleration due to gravity would remain the same. Acceleration due to gravity is a constant value on Earth's surface regardless of the mass of the object, and all bodies fall at the same rate in a vacuum.
How air resistance affect the acceleration of falling objects?
Air resistance causes friction and slows an object.
Is it possible for a falling object to have a positive acceleration?
Yes, it is possible for a falling object to have a positive acceleration if it is undergoing free fall near the surface of the Earth and experiencing a net force greater than gravity (e.g., air resistance). This can cause the object to accelerate in the direction of its motion despite falling downward.
How does air resistance affect the acceleration of falling objects?
As a falling object accelerates through air, its speed increases and air resistance increases. While gravity pulls the object down, we find that air resistance is trying to limit the object's speed. Air resistance reduces the acceleration of a falling object. It would accelerate faster if it was falling in a vacuum.
A falling stone has zero acceleration?
Only if it has enough wind resistance to cancel out gravity.
What acceleration does the object reach when air resistance equals the force of gravity on a falling object?
the acceleration of gravity is 9.8 m/s
How do you calculate the velocity and acceleration of falling objects?
As usual when we talk about falling objects, we have to ignore air resistance,because its effects depend on the size, shape, and composition of the objectthat's falling, as well as the temperature, pressure, humidity, and wind-speedof the local air, and we have none of that information. So we must simply treatthe whole subject as if the only effects on the falling object are those that arethe result of gravity.Velocity:-- The direction of the velocity vector is down.-- The magnitude of the velocity vector (called "speed") is(initial downward speed when dropped or tossed) plus (acceleration x time spent falling).Acceleration:-- Direction of the acceleration vector is down.-- Magnitude of the acceleration vector depends on what planet you're on or near,but is always the same as long as you stay there, and doesn't need to be calculated.In the case of Earth, it's 9.8 meters (32.2 ft) per second2 .
Can a body have decreasing acceleration but increasing speed?
Yes, a body can have decreasing acceleration but increasing speed if the acceleration is negative (deceleration). This means the object is slowing down but still moving in the positive direction, leading to an increase in speed.
