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Which involves speed--work or power?
Work does not involve speed directly; it is the product of force and displacement. Power, on the other hand, is a measure of how quickly work is done or how quickly energy is transferred, and does involve speed as it is the rate at which work is done.
How much work must be done on a kg sled to increase its speed from 10ms to 15 ms?
To calculate the work done on the sled to increase its speed, you need to know the initial and final kinetic energy. The work done is equal to the change in kinetic energy, which is given by the formula: Work = (1/2) * m * (vf^2 - vi^2) Substitute the mass of the sled, initial speed, and final speed to find the work done.
What happens to work done by friction if the speed doubles?
If the speed doubles, the work done by friction remains the same. Friction depends on the force between surfaces and the distance they move relative to each other, not the speed.
How does speed affect work done?
Speed affects work done by increasing the amount of work completed in a given amount of time. The faster an object moves, the more work it can accomplish in a particular time period. This relationship is captured by the formula: work = force x distance, where work is directly proportional to speed.
What two factors does the power of a machine depend on?
The power of a machine depends on both the force applied and the speed at which work is done. It is calculated as the product of force and speed, or the rate at which work is done.
Which involves speed--work or power?
Work does not involve speed directly; it is the product of force and displacement. Power, on the other hand, is a measure of how quickly work is done or how quickly energy is transferred, and does involve speed as it is the rate at which work is done.
How much work must be done on a kg sled to increase its speed from 10ms to 15 ms?
To calculate the work done on the sled to increase its speed, you need to know the initial and final kinetic energy. The work done is equal to the change in kinetic energy, which is given by the formula: Work = (1/2) * m * (vf^2 - vi^2) Substitute the mass of the sled, initial speed, and final speed to find the work done.
What happens to work done by friction if the speed doubles?
If the speed doubles, the work done by friction remains the same. Friction depends on the force between surfaces and the distance they move relative to each other, not the speed.
How does speed affect work done?
Speed affects work done by increasing the amount of work completed in a given amount of time. The faster an object moves, the more work it can accomplish in a particular time period. This relationship is captured by the formula: work = force x distance, where work is directly proportional to speed.
What two factors does the power of a machine depend on?
The power of a machine depends on both the force applied and the speed at which work is done. It is calculated as the product of force and speed, or the rate at which work is done.
What happens when work is done on a object?
When work is done on an object, it gains energy in the form of kinetic energy or potential energy depending on the type of work done. The object's speed, height, or deformation may change as a result of the work done on it.
How do you work in calculator?
Work Done = Force x Distance = Power / Time = (Force x speed)/Time
When work is not done to an object?
The object continues moving in a straight line at its current speed.
When work is done to an object?
The object continues moving in a straight line at its current speed.
What can be said about the speed of a particle if the net work done on it is zero?
In that case, basically no force acts on the particle, and the particle moves at a constant speed. This constant speed may, or may not, be zero.
How much work must be done on a 5 kg snowboard to increase its speed from 2 ms to 4 ms?
The work done on the snowboard is calculated as the change in kinetic energy. The formula for kinetic energy is KE = 0.5 * mass * velocity^2. By calculating the initial and final kinetic energies, the work done would be the difference between the two. In this case, the work done on the snowboard is 60J.
What is the work done by the weight if a body is moving at constant speed over a firctionless surface?
If a body is moving at constant speed over a frictionless surface, the work done by the weight of the body is zero. This is because the weight force acts in the downward direction, perpendicular to the direction of motion, so there is no displacement in the direction of the weight force for work to be done.
