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RossOne example of a non-contact force that can make something speed up is gravity. When an object is in free fall, gravity pulls it downward, causing it to accelerate and increase in speed. Another example is magnetic force, where two magnetic objects can repel or attract each other, causing one object to speed up towards the other.
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What is a force that causes something to speed up?
A force that causes something to speed up is called acceleration. This force can be produced by pushes, pulls, or gravity acting on an object.
Why contact force between surface increases when speed increases?
As the speed increases, the force of contact between the surface and the object increases because the object has more momentum and exerts a greater impact force on the surface. This is due to a combination of factors such as momentum transfer, friction, and surface deformation, leading to an increase in the contact force.
What is it called when a force that makes motion slow down and stop?
The force that makes motion slow down and stop is called friction. Friction is the resistance that occurs when two surfaces come into contact with each other. It acts in the opposite direction of the motion and reduces speed.
Is friction a greater force when motion is faster?
Friction is not affected by the speed of motion. The force of friction remains constant regardless of the speed of the objects in contact.
How the bat speed is measured in cricket?
Bat speed in cricket is typically measured using specialized instruments like speed guns or radar guns. These devices calculate the speed at which the bat is moving when it makes contact with the ball. The faster the bat speed, the more power and force can be generated in the shot.
