0
Show that derivative of kinetic energy is equal to force times velocity?
Wiki User
∙ 11y ago
dKE/dt = P= F.v
Where KE is Kinetic Energy and P is Power.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
How do you find kinetic energy if no final velocity is given?
Kinetic energy is equal to potential energy during the change
How do you solve the time by the given of mass and kinetic energy?
Kinetic energy is equal to one-half of the product of an object's mass and the square of its velocity. Velocity is change in displacement divided by time. If you have the kinetic energy and mass, you can calculate the velocity by taking the square root of the quotient of kinetic energy and mass, and thereby solving for the velocity.
Do changes in velocity and mass have the same effect on kinetic energy?
Kinetic energy is equal to one half the mass times the square of the velocity. Thus, changes in velocity and mass do not have the same effect on kinetic energy. If you increase the mass by a factor of 10 at the same velocity, you increase the kinetic energy by a factor of 10. However, if you increase the velocity by a factor of 10 at the same mass, you increase the kinetic energy by a factor of 100.
What will happen to the kinetic energy of the body if the mass of the body is halved and velocity remains the same?
Kinetic energy will also be halved. Because kinetic energy is equal to 1/2 mv2
How is kinetic energy defined?
It is equal to one half of the mass times the velocity squared
What happens to kinetic energy when you decrease the mass?
Kinetic energy = K.E. = 1/2 (m)(v)2. Since mass, m, is part of this equation, we see that two particles of equal velocity but of different masses have different kinetic energies. In the case of equal velocities, the particle with the lesser mass will have the lower kinetic energy. Remember that momentum is the derivative of K.E., and so the momentum of an object is also related to the mass of an object as well.
If two tennis balls of equal mass are rolling down a hill with different volocities do they have the same kinetic energy?
No. Larger velocity = larger Kinetic Energy.
What is the displacement of an object when the kinetic and potential energies are equal?
If the Kinetic Energy and the Potential Energy of an Object REMAIN equal while the object is in Motion, then it is Moving at a Constant Velocity PARALLEL to its "Reference System".
If kinetic energies of the two objects are equal is momentum also always equal?
Yes, and shame on your physics professor for not making this clear to you. Much of physics (some would say most) is about mathematics, so the clearest way for me to explain this is in mathematical terms. Where K is kinetic energy, m is mass, and v is velocity: K = (1/2)*m*(v*v) By (v*v), I mean velocity squared. Momentum, P, is the first derivative of kinetic energy with respect to velocity: P = dK/dv = m*v So momentum and kinetic energy are intimately linked. Same K, same P. K?
When mass is increased kinetic energy?
Kinetic energy is defined as (1/2)(mass)(velocity squared), so yes, other things being equal, more mass means more kinetic energy.
What form of energy does a cross bolt hitting a target?
Kinetic energy equal to half the mass times the velocity-squared.
How do you find the kinetic energy of a falling nickel?
1) measure its mass and velocity. 2) Measure where its falling from. (the kinetic energy will equal the potential energy up to the instant the nickel stops).
