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Gravity
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∙ 7y ago
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What is terminal velocity and what causes it?
Terminal velocity is an object's maximum speed while falling through the air, and it happens when the force created by air resistance is equal to the force of gravity.
A ball falling through the air has?
acceleration due to gravity acting on it, which causes it to increase in speed as it falls. The force of air resistance also acts on the ball, gradually slowing it down. Eventually, the ball reaches terminal velocity, where the force of gravity is equal to the force of air resistance and the ball falls at a constant speed.
What force keeps things from falling through surfaces?
Support Force
What force causes a falling object to gain kinetic energy?
gravity
When the only force acting on a falling object is air resistance?
The word "falling" implies there is a gravitational force also. As the object gains speed, the air resistance ("drag") increases, until it equals the gravitational force. After that there is no net (resultant) force, so the object goes at constant speed.
What causes things to fall to the ground at different speed?
Gravitational force of attraction....
What is terminal velocity and what causes it?
Terminal velocity is an object's maximum speed while falling through the air, and it happens when the force created by air resistance is equal to the force of gravity.
A ball falling through the air has?
acceleration due to gravity acting on it, which causes it to increase in speed as it falls. The force of air resistance also acts on the ball, gradually slowing it down. Eventually, the ball reaches terminal velocity, where the force of gravity is equal to the force of air resistance and the ball falls at a constant speed.
How does drag work?
Drag force, or the force of air friction for a falling body, increases with speed. A falling object will reach a speed at which the force of air friction will be equal to and opposite the force of gravity. At that point, the object will no longer accelerate. It's speed will remain constant, and we call that speed (and direction) its terminal velocity.
What force keeps things from falling through surfaces?
Support Force
What force causes a falling object to gain kinetic energy?
gravity
A force causes a mass to?
speed up
Can speed be treated as force in direction and opposite speed?
Speed and force are quite different things.
Why do things speed up or slow down?
Its all physics. Things speed up and slow down because of a force acting upon them. Newton's second law of motion states that the force applied to an object is equal to its mass times acceleration, i.e. F = MA. As a result force causes a change in acceleration, which causes a change in velocity. This can be positive or negative, depending on which direction the force is acting.
Can A force can cause an object to change its speed?
Yes,because if a force is getting weaker it causes the speed to slow down but if the force is getting stronger it causes the object to move faster.
When the only force acting on a falling object is air resistance?
The word "falling" implies there is a gravitational force also. As the object gains speed, the air resistance ("drag") increases, until it equals the gravitational force. After that there is no net (resultant) force, so the object goes at constant speed.
What is reason for things falling down?
Gravity is the reason of things falling down. It is the force exerted by earth,which attract things towards the centre of earth.
