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Why is it that the faster a car goes the greater the force needed to stop it?
Wiki User
∙ 10y ago
Newton's first law of motion is often stated as
An object at rest tends to stay at rest and an object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force. (Unbalanced force here being the brake force applied to the train's wheels and the friction between the wheels and the tracks/grade.)
The stopping distance of that object is directly proportional to it's mass. The greater the mass, the greater the inertia. (resistance of an object to change it's present state) and momentum (weight times velocity). The faster it's going-the longer distance it needs to stop.
Wiki User
∙ 10y ago
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Is pushing a stroller an unbalanced force?
Only if it goes faster and faster. Otherwise, if you have to push all the time and it maintains its speed, that means that the force of the pushing is balanced by other forces, usually friction.
Why is it easier to hit a home run off a fast pitch than a slow pitch?
There is more force exherted on the ball when you hit it if it goes faster. The slower the ball goes, the less force is applied so it doesnt go as far. Hope that helps, dude.
A car goes forward along a level road at constant velocity The additional force needed to bring the car into equilibrium is?
Zero.
How does a car increases and decreases friction?
To increase friction, the car goes faster so that the air resistance becomes greater. To decrease friction the car goes slower to decrease the air resistance acting on the car. Hope that helped:)
How is acceleration affected by force?
the more force u put on an object the faster it goes 4 example, if a little girl pushes a wagon with a bolder in it it wont go the far but if a full grow man pushed it it would go father because there will b more force.
Why does a car speeding up on the highway have a greater force than a car slowly driving into a garage?
Because it has more momentum the faster it goes.
What happens to the air resistance on a car as the car goes faster?
The resistance is greater the faster the vehicle is going.
What happens when increasing the force on a object its acceleration?
goes faster
Why can't the force that comes out of a machine be greater than the force that goes into a machine?
It sure can. A machine as simple as a lever can produce an output force that is greater than the input force. Perhaps you are confusing "force" with "energy"?
If the force acting on a cart doubles what happens to the cart's motion?
it goes faster i assume.
What would happen if the gravitational pull on an object is greater than the buant force on a fluid?
As worded, the question doesn't mean much. I think you want to compare thegravitational force on an object with the buoyant force on the same object whenit's in a fluid.As long as the gravitational force is greater than the buoyant force, the objectmust keep accelerating downward ... sinking further and faster, and displacingmore fluid as it goes. If it ever displaces enough fluid for the buoyant force toequal the gravitational force on it (its 'weight'), then it stops sinking, and floatsright there.
Is pushing a stroller an unbalanced force?
Only if it goes faster and faster. Otherwise, if you have to push all the time and it maintains its speed, that means that the force of the pushing is balanced by other forces, usually friction.
After you start up your motor bikE YOu give it more gas it goes faster which law IS IT?
acceleration = force / mass
How fast f22 raptor goes?
The Air Force admits to 1,500 mph, -personally I think it may be faster than that.
How can you tell if an object is accelerating?
You know that a car is accelerating because you will be pulled in a direction opposite the force that is accelerating the car. This is Newton's Third Law: "For every force, there is an equal and opposite force".
How does action reaction forces apply to softball?
the ball exerts a force on the bat creating action and in turn you apply a force that is greater than the action force. this is called the reaction force.
What force acts on gliders in the air?
Gravity, from the Earth, pulling it towards the ground, and Lift, applied by the air due to pressure difference on the wings (high pressure below the wing, low pressure above the wing). The faster the glider goes, the greater the Lift. Gravity does not change however.
