0
What else can I help you with?
A net force of 22 N accelerates a 4-kg mass over a distance of 18 m. What is the work done by this net force What is the increase in kinetic energy of the mass?
Work done by a force (W) = Force (F) x distance (m) W = 22 x 18 = 396 Joules According to the law of conservation of Energy, the total energy of a closed system is constant, but can change from one type to another. Therefore, the work given to the object must be converted into the kinetic energy of the object. So, Increase in Kinetic energy = work done = 396 Joules
How do you find mean kinetic energy when given only mass and horizontal distance traveled?
You don't have enough information in this case. Kinetic energy depends on mass and speed. Speed can be calculated as distance / time - and no time is given, nor is there any other information that allows you to calculate the time. Note that even if time is given, you can calculate the average (mean) speed, but that will only give you a rough idea of the mean kinetic energy. In this problem, if the speed changes a lot, the average kinetic energy (averaged over time) will be greater than in the case of a constant speed. This is because kinetic energy is proportional to the square of the speed.
What is the coefficient of kinetic friction between the 13.0kg wooden crate and the horizontal force of 31N of the floor?
The coefficient of kinetic friction can be calculated using the formula: coefficient of kinetic friction = force of kinetic friction / normal force. The force of kinetic friction can be found using the formula: force of kinetic friction = coefficient of kinetic friction * normal force. Given the force of 31N and normal force equal to the weight of the crate (mg), you can calculate the coefficient of kinetic friction.
Work-kinetic energy theroem expression?
Work-Energy Theorem.When work is done on a body its kinetic energy changes.Let a constant force F acting on a body of mass m changes its velocity from u to v in a distance d, then work done = F * dchange in kinetic energy = 1/2mv2 - 1/2mu2 = 1/2m(v2 - u2) =1/2m * 2ad =ma * d =F *dTherefore work done = change in kinetic energy, that is F *d = 1/2mv2 - 1/2mu2.
How do you find kinetic energy if no final velocity is given?
You can calculate kinetic energy using the formula KE = 0.5 * m * v^2, where m is the mass of the object and v is its velocity. If the final velocity is not given, you would need more information or assumptions to solve for kinetic energy.
What is the transfer of energy that occurs when a force makes an object move?
The transfer of energy that occurs when a force makes an object move is called work. Work is a quantity of energy given in the unit of Joules. The mathematical description of work is the product of the force and the distance for which it was applied.
A net force of 22 N accelerates a 4-kg mass over a distance of 18 m. What is the work done by this net force What is the increase in kinetic energy of the mass?
Work done by a force (W) = Force (F) x distance (m) W = 22 x 18 = 396 Joules According to the law of conservation of Energy, the total energy of a closed system is constant, but can change from one type to another. Therefore, the work given to the object must be converted into the kinetic energy of the object. So, Increase in Kinetic energy = work done = 396 Joules
A cart pushing ten bricks or a cart pushing twenty bricks using the same force and going the same distance which has greater kinetic energy?
The same force could not be applied to travel the same distance if there is a larger mass in one instance. Applied force will accelerate a given mass twice as much as a mass half as large. If both are moving the same distance, the 20-brick cart had more kinetic energy when in motion.
What does a force moving an object through a distance transfer?
Energy or "work" The formula is Energy transferred or work done is equal to the force needed times the distance moved Wd = F x d
How can I solve work and kinetic energy problems effectively?
To solve work and kinetic energy problems effectively, you can follow these steps: Identify the given values such as mass, velocity, and distance. Use the formulas for work and kinetic energy: Work force x distance and Kinetic Energy 0.5 x mass x velocity2. Substitute the values into the formulas and solve for the unknown variable. Pay attention to units and make sure they are consistent throughout the calculations. Double-check your calculations to ensure accuracy. By following these steps, you can effectively solve work and kinetic energy problems.
What if A man pushes a sled across the snow using a force of 300 N over a distance of 2 m. What is the kinetic energy of the sled after he pushes it Assume there is no friction.?
The kinetic energy of the sled can be calculated using the formula KE = 0.5 * mass * velocity^2. Since no velocity is given, we can find it using the work-energy principle: Work done = Change in kinetic energy. The work done by the man is 300 N * 2 m = 600 J, which equals the change in kinetic energy of the sled. Given that initial kinetic energy is 0 J, the final kinetic energy of the sled is 600 J.
How to calculate the coefficient of kinetic friction in a given scenario?
To calculate the coefficient of kinetic friction in a given scenario, you can divide the force of kinetic friction by the normal force acting on the object. The formula is: coefficient of kinetic friction force of kinetic friction / normal force.
What is the relationship between kinetic energy and work?
Relationship between work and kinetic energy. Work is defined as the result of a force moving an object a distance and is stated by the equation W=Fd. But the result of the force being applied on the object also means that the object is moving with some given velocity, according to the equation for force as F=ma. From those two equations, it can be shown that work is equivalent to kinetic energy Kinetic Energy =1/2mv2
What is the name given to energy?
kinetic energy
Is kinetic energy a force motion or energy?
Kinetic energy is energy. It can be transformed to other types of energy. And as energy it can be applied to do work. If an elastic ball is dropped from a given height, it will develop kinetic energy at the expense of its potential energy. An instant before collision with the floor, its kinetic energy amounts to the original potential energy of the ball with respect to the floor. (if we can neglect air resistance).
When kinetic energy is the heighest?
Kinetic Energy is given by,KE = 1/2mv2 So, Kinetic energy is highest when velocity is highest..
How do you calculate force when only given distance and power?
You can't because you need the time involved. Force x distance shifted in the direction of the force = energy. But power is energy per unit time (seconds etc)
