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Force / mass / velocity change
Impulse = force applied for fixed length of time.
Impulse applied to constant velocity mass.
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Problem :
Calculate the final velocity (v) on a 100 kg mass (m) moving at 100 metres per second (u), when an impulse (1000 newtons for 5 seconds) is applied in the same direction as the motion of the object.
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Derived from force (f) = mass (m) * acceleration (a) (issac newton)
but a = velocity change (vc) / time (t)
so :
f = m * (vc / t)
so :
vc = (f * t) / m
vc = 5000 / 100
vc = 50 metres per second (velocity change)
add to initial 100 metres per second = (50 + 100) =
final velocity (v) = 150 metres per second.
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Different route:
calculate a from a = f / m = 1000 / 100 = 10 (m/s)/s
Then :
v = u + ( a * t ) = 100 + 50 = 150 metres per second.
What else can I help you with?
Inertia is affected by what?
Inertia is affected by an object's mass. The greater the mass of an object, the greater its inertia. Additionally, inertia is also influenced by an object's velocity - the higher the velocity, the greater the inertia.
How is centripetal force affected by mass?
Centripetal force is not affected by mass. The formula for centripetal force is Fc = (mv^2) / r, where m is mass, v is velocity, and r is the radius of the circular motion. The mass only affects the inertia of the object in circular motion, not the centripetal force required to keep it moving in a circle.
Does mass and velocity equal force?
No, mass and velocity do not equal force. Force is the product of mass and acceleration, not velocity. The equation for force is F = ma, where F is the force, m is the mass, and a is the acceleration.
How can I find the force when given the mass and velocity of an object?
To find the force when given the mass and velocity of an object, you can use the formula: Force mass x acceleration. Acceleration can be calculated using the formula: acceleration change in velocity / time. By substituting the given values of mass and velocity into these formulas, you can determine the force acting on the object.
How does mass affect velocity?
When mass increases, velocity remains constant if the force applied remains constant. However, if the applied force stays the same, an increase in mass will require more force to achieve the same acceleration, which may lead to a decrease in velocity.
Inertia is affected by what?
Inertia is affected by an object's mass. The greater the mass of an object, the greater its inertia. Additionally, inertia is also influenced by an object's velocity - the higher the velocity, the greater the inertia.
How is centripetal force affected by mass?
Centripetal force is not affected by mass. The formula for centripetal force is Fc = (mv^2) / r, where m is mass, v is velocity, and r is the radius of the circular motion. The mass only affects the inertia of the object in circular motion, not the centripetal force required to keep it moving in a circle.
Does mass and velocity equal force?
No, mass and velocity do not equal force. Force is the product of mass and acceleration, not velocity. The equation for force is F = ma, where F is the force, m is the mass, and a is the acceleration.
How can you find force when mass and velocity are given?
You cannot. Force = Mass*Acceleration or Mass*Rate of change of Velocity.
How do you calculate force when mass and velocity are given?
Force equals the mass times the rate of change of the velocity.
When does a force change the velocity of an object?
If the object is in free-space, and any force applied over a period of time will change the velocity of an object. Force = mass * acceleration. Acceleration = velocity / time. Therefore, Force = mass * velocity/time.
How can I find the force when given the mass and velocity of an object?
To find the force when given the mass and velocity of an object, you can use the formula: Force mass x acceleration. Acceleration can be calculated using the formula: acceleration change in velocity / time. By substituting the given values of mass and velocity into these formulas, you can determine the force acting on the object.
What are equations for velocity when given force and mass?
Velocity = (velocity when time=0) + (Force x time)/(mass) ===> F = MA A = F/M V = V0 + A T
What is the relationship between centripetal force and velocity?
Centripetal force is = mass * velocity square divided by radius
How does mass affect velocity?
When mass increases, velocity remains constant if the force applied remains constant. However, if the applied force stays the same, an increase in mass will require more force to achieve the same acceleration, which may lead to a decrease in velocity.
What objects are not affected by force?
There is no such object. Any object on which a force is applied will accelerate (i.e., its velocity will change over time). If the object has a very large mass, the effect will be hardly noticeable for any given force.
Would a large mass with high velocity have more force than a smaller mass with same velocity?
Yes. There are two slightly different definitions of "force". Kinetic energy is calculated as 1/2 * mass * velocity squared, or 1/2mv2. Momentum is mass times velocity, or mv. When you simply say "force", you're probably thinking of momentum. But in either calculation, a large mass will have more force than a smaller mass.
