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Why does a speeding bullet and a fact moving train have so much force?
cause
How do you apply the concept of momentum to compare the mass and velocity of a slow moving train and of a high-speed bullet?
The slow moving train has a much higher mass than the high-speed bullet, but the bullet has a faster velocity than the slow moving train so their momentum is the same.
Why does a slow moving train have a large momentum?
Momentum = mass * velocity. The mass of a train is massive so it'll have a high momentum
Is it possible for a car moving with a consonant velocity to have forces acting on it.describe?
Yes, frictional forces such as air, tires against the ground, gravity pulling the car down, force of engine moving car forward. The positive force of the engine turning the drive train and the wheels is equaled by the frictional forces; so overall forces balance out.
Why when a ball thrown vertically upwards by a man in a moving train comes back to his hand?
that depends on 3 factors, how big is the circle, how fast is the train, and how high is the ball thrown also it is to be considered that u are assuming the natural (actual) conditions like the air thrust is present or hypothetical conditions that there is no air thrust. Under all ideal conditions i.e. no air thrust etc. the ball will move tangentially to the path of the circle the train is traversing.
Why does a speeding bullet and a fact moving train have so much force?
cause
Why does a speeding bullet and a moving train have so much force?
Each of those items has large momentum and kinetic energy ... the bullet because of its high speed, and the train on account of its large mass.
How do you apply the concept of momentum to compare the mass and velocity of a slow moving train and of a high-speed bullet?
The slow moving train has a much higher mass than the high-speed bullet, but the bullet has a faster velocity than the slow moving train so their momentum is the same.
Why all papers attract to train when moving?
Because of Bernoulli's principle. A moving train makes the air close(r) to the train move faster. Faster moving air has less pressure. So a paper is sucked closer to the train because of the pressure differential.
Why does a speeding bullet and a train have so much force?
Each of those items has large momentum and kinetic energy ... the bullet because of its high speed, and the train on account of its large mass.
How do you interpret a reference point?
something that stay at the same velocity...or dumbing it down :) is what an object is moving relative to something else.. so if there is a train and a girl watching the train the girl is a reference point because the train is moving relative of it
Why does a slow moving train have a large momentum?
Momentum = mass * velocity. The mass of a train is massive so it'll have a high momentum
Is it possible for a car moving with a consonant velocity to have forces acting on it.describe?
Yes, frictional forces such as air, tires against the ground, gravity pulling the car down, force of engine moving car forward. The positive force of the engine turning the drive train and the wheels is equaled by the frictional forces; so overall forces balance out.
Why when a ball thrown vertically upwards by a man in a moving train comes back to his hand?
that depends on 3 factors, how big is the circle, how fast is the train, and how high is the ball thrown also it is to be considered that u are assuming the natural (actual) conditions like the air thrust is present or hypothetical conditions that there is no air thrust. Under all ideal conditions i.e. no air thrust etc. the ball will move tangentially to the path of the circle the train is traversing.
What is the upward force on a moving object with a lift at a rate of 17m per s?
If the object is moving at a constant speed, the net force on it is 0. So the upward force would have to be equal to the downward force (namely the weight of the object).
How does friction affect the velocity of a train?
friction will act in the opposite direction to the propulsion force driving the train. so it will cause a resistance and so limit the velocity
A locomotive has broken through the wall of a train station As it did what can be said about the force exerted by the locomotive on the wall Does the wall exert greater eqaul or less force than train?
The wall exerted less force, so the force exerted on the wall by the locomotive was greater than the force of the wall.
