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What impulse would occur when the same force of 10 N acts on the cart for twice the time?
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When impulse will be zero?
Impulse is based on two factors: force and time. I = F / t. If there is zero force, the impulse will be zero. If time is zero, the calculation would be undefined.
How would the force needed to open a door change if you put the handle in the middle of the door?
If the doorknob were moved to the middle of the door, it would take twice as much force to open it than if it were at the edge of the door. With the mass of the door being equal. Moment = the force to open the door times the distance to the center of the hinges. If the distance were cut in half it would take twice the force to keep the equation true.
Between which particles would an electric force of attration occur?
The particles hardly are affected by the attractive forces
Does a change in motion occur only if a net force is exerted on an object?
No. Changes in motion can occur in other ways. A change in motion can occur if that object exerts a net force on another object, like another ball on a billiard table. The object could also bump into an immovable object and its motion would change.
According to Newton's second law Twice the force results in twice the acceleration.?
Yes, According to Newtons second law: F= Force m=mass a=acceleration. Newton used the formula F= ma. So force is equal to mass multiplied by acceleration. So if you multiply force by two it would be equal to mass multiplied by acceleration multiplied by two. 2F = 2(ma) Assuming the mass does not change, any multiplication of force will be a direct multiplication of acceleration.
When impulse will be zero?
Impulse is based on two factors: force and time. I = F / t. If there is zero force, the impulse will be zero. If time is zero, the calculation would be undefined.
Can the impulse of force be zero even the force is not zero?
If the force is non-constant, and reverses itself over time, it can give a zero impulse. For example, the spring force would give a zero impulse over one period of oscillation.
What happens to momentum when an impulse acts on a system?
Strictly speaking, you would say that a force acts on a system and the impulse of that force corresponds to the change in momentum of the system due to the action of the force. More mathematically, the impulse of a force is defined as the integral of that force with respect to time over the time period that the force acts.
How does impulse affect rocket flight?
The higher the impulse of a particular motor, the larger and faster and higher it will cause the rocket to travel. Impulse is a term that describes the relative strength of a rocket motor. The impulse of a given engine is found by multiplying the average force that the motor will push with by the number of seconds that the motor will push. Model rocket motors are usually measured using the metric system, where the units of force are "newtons". If a motor pushed with a force of 10 newtons for 3 seconds, this motor would have an impulse of 30 newton-seconds (usually written 30 N-s). This is the same impulse as a motor which pushes with a force of 3 newtons for 10 seconds. When choosing between two motors with the same impulse, the decision to use a shorter duration with higher force or longer duration with lower force, is made based on the amount of drag and the mass of the rocket and other factors, but these factors are usually much less important than selecting the impulse of the engine. In the United States, model rocket motors use a letter desigtation followed by a pair of numbers, such as "B-6-4". The letter describes the approximate impulse of the motor. "A" motors have around 2.5 N-s of impulse, "B"s have twice as much impulse as "A"s, "C"s have twice as much impulse as "B"s etc.
Can a moving object have impulse in itself?
yes moving objects have impulse
Is it possible for an object to receive a larger impulse from a small force than from a large force?
Impulse is the integral of force with respect to time. The impulse is equal to the change of momentum.Momentum = mass x change in velocity.Force = mass x accelerationTherefore, momentum = F x v /aTherefore, a small force applied for a long time can produce the same momentum change as a large force applied briefly.After all that, the answer is yes if the time period is longer.
If earth was twice as far from the sun would the force of gravity attracting it increase?
No, it would actually decrease.
A man standing in a boat fires horizontally would the boat move in the direction of fire or none?
Newton's Third Law: For every force there is an equal and opposite reaction force. The boat (and man) would receive an impulse force opposite to the direction of firing. The boat would move opposite to the direction of firing. To determine how much, you would need to consider the relative masses of the boat/man vs the bullet, and include the duration of the impulse. (The boat would probably not move far, but it would move.)
How would the first law of motion describe a car being pushed off something and accelerating downward?
first law deals with unforced bodies, pushing the car involves an impulse force, once off the cliff the force of gravity takes over , resulting in impulse force until it hits the ground f=m*a but a = velocity change/time, so: force * time/mass= velocity change
How would the force needed to open a door change if you put the handle in the middle of the door?
If the doorknob were moved to the middle of the door, it would take twice as much force to open it than if it were at the edge of the door. With the mass of the door being equal. Moment = the force to open the door times the distance to the center of the hinges. If the distance were cut in half it would take twice the force to keep the equation true.
What is a G?
a G is the force due to gravity. 2G would be twice the force due to gravity. Astronauts have to withstand multiple G when leaving the Earth's atmosphere.
If the sun had twice as much diameter and mass what would happen to the gravitational force between Earth and the Sun?
Double
