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Does a 2kg mass require twice as much force to doulbe its velocity as does a 1 kg mass?
Wiki User
∙ 11y ago
Yes, a 2- kg rock has twice the mass of a 1-kg rock, since mass is measured in kilograms.
Wiki User
∙ 11y ago
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Two balls A and B of mass m and 2m respectively are carried to height h at constant velocity but B rises twice as fast as A The work the gravitational force does on B is?
Ug=mgh assume- the work the gravitational force is the gravitational potential energy=Ug hence, Ug doesn't depend on velocity/speed, therefore Ug= (2m) gh
What will happen to the kinetic energy for an object if its mass is double but the velocity remains at the same?
Kinetic Energy = (1/2)*(mass)*(velocity)2 If you double the mass, then the kinetic energy will double If you double the velocity, the kinetic energy will increase by a factor of 4
Why the time twice in unit acceleration?
An acceleration is not a velocity - it is the rate of change of velocity. In SI units, the units of velocity are meters/second. Acceleration is the rate of change of velocity, per unit time - how fast the velocity changes. Therefore, its units are velocity / time. In SI units, this gives you (meters/second) / second, usually written as meters/second2.
Near the earths surface the amount of mass an object has does not affect it's acceleration due to gravity?
That is correct. Earth's gravity, often expressed as 9.8 meters per second square, can also be expressed as the equivalent 9.8 Newton per meter. That is, an object of twice the mass will feel twice the force of attraction from Earth. However, it will also have twice the inertia - it requires twice the force to give it a certain acceleration.That is correct. Earth's gravity, often expressed as 9.8 meters per second square, can also be expressed as the equivalent 9.8 Newton per meter. That is, an object of twice the mass will feel twice the force of attraction from Earth. However, it will also have twice the inertia - it requires twice the force to give it a certain acceleration.That is correct. Earth's gravity, often expressed as 9.8 meters per second square, can also be expressed as the equivalent 9.8 Newton per meter. That is, an object of twice the mass will feel twice the force of attraction from Earth. However, it will also have twice the inertia - it requires twice the force to give it a certain acceleration.That is correct. Earth's gravity, often expressed as 9.8 meters per second square, can also be expressed as the equivalent 9.8 Newton per meter. That is, an object of twice the mass will feel twice the force of attraction from Earth. However, it will also have twice the inertia - it requires twice the force to give it a certain acceleration.
What is the formula for solving acceleration?
acceleration = twice the distance over time, or the derivative of velocity with respect to time
When a car increases its velocity its momentum?
When something increases in velocity, its momentum would increase because momentum is equal to its mass * velocity. This means that the momentum and velocity are proportional, so twice the velocity is twice the momentum, and so on.
What is the unit of measurement in calculating the ship total resistance?
resistance will be in newtons, this force is linked to the square of the velocity, ie if you go twice as fast you' ll encounter four times the resistance
What will happen to the KE of an object if its mass is doubled but the velocity remains the same?
Twice the mass --> twice the kinetic energy.
Two balls A and B of mass m and 2m respectively are carried to height h at constant velocity but B rises twice as fast as A The work the gravitational force does on B is?
Ug=mgh assume- the work the gravitational force is the gravitational potential energy=Ug hence, Ug doesn't depend on velocity/speed, therefore Ug= (2m) gh
Examples for 2nd law of motion?
Newton stated that an object will change velocity if you push it or pull it - it accelerates in the direction you push it. If you push it twice as hard, it will accelerate twice as fast (acceleration is directly proportional to force). If the object has twice the mass, it will accelerate half as much (acceleration is inversely proportional to mass)
Why does the unit of time appear twice in the definition of acceleration?
Once for the unit of velocity and again for the interval of time in which the velocity is changing.
Does an object have twice as much velocity if it has twice the mass of a second object?
No. An object's velocity is completely unrelated to its mass. When you're sitting in your seat on a commercial airliner cruising at 30,000 feet, your velocity is precisely the same as the airliner's velocity, even though, we venture to surmise, there is quite a difference between the airliner's mass and yours.
If you double the force you throw a ball the acceleration will double?
No. For a start, you probably don't mean "acceleration" you probably mean "speed" or "velocity." There is a non-linear relationship between force applied on an object and the speed which it will travel through a medium (in this case, air). To double the speed, the amount of force required is more than double, since as the speed of the object increases, the frictional losses similarly increase. Since in this case, the ball will continue to slow immediately after release, the ball is experiencing "acceleration" with a negative value. A In case you are really asking about acceleration the answer is yes. If the ball, in your hand, starts from rest and is accelerated up to some velocity at which it leaves your hand then that acceleration will be double if you throw with twice the force. This will cause the ball to leave your hand with twice the velocity. Once it leaves your hand you are no longer exerting a force on it and the ball will be subject to air resistance which will affect its velocity as described above.
How much force is needed to accelerate an object twice as fast?
You twice it.
What will happen to the kinetic energy for an object if its mass is double but the velocity remains at the same?
Kinetic Energy = (1/2)*(mass)*(velocity)2 If you double the mass, then the kinetic energy will double If you double the velocity, the kinetic energy will increase by a factor of 4
A rifle is fired and you are able to measure both the muzzle velocity of the bullet as well as the recoil velocity of rifle how do you explain the fact that the forward velocity of the bullet is great?
The forward velocity of the bullet is greater than the recoil velocity of the rifle because of Newton's third law of motion, which states that for every action, there is an equal and opposite reaction. When the bullet is fired forward with high velocity, the rifle experiences a recoil in the opposite direction but with lower velocity due to the mass difference between the bullet and the rifle.
What is force felt by an accelerating object equal to?
the rate of acceleration depends on mass and force , in the equation a= f/m ie halve the mass = twice the acceleration double the force = twice the acceleration
