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Can kinetic energy be measured in newtons?
No, kinetic energy is measured in Joules (J), as this is the SI unit for energy.
How is the law of conseervation of energy illustrated by newtons cradle?
Newton's cradle conserves energy but converts it from potential to kinetic energy and vice versa.
When will a net force increase an object's velocity?
Assuming zero friction, the object will increase in velocity as long as an unopposed force is applied. So long as the net force has a magnitude to overcome the static friction (and is constantly applied once the object is in motion) then the object will accelerate with respect to the difference between the force of kinetic friction and net force. Force is measured in Newtons ((kg*(m/(s^2)) which is mass*acceleration) so the equation for force is F=m*a. To find the acceleration, the net force, F, divided by mass, m, will leave you with Newtons/mass on one side of the equation and acceleration on the other (m/(s^2)). Example: A 2kg block is pushed with a net force of 6N in one direction on a horizontal plane. The static friction constant between the block and the surface is 0.3 and the kinetic friction constant is 0.1. The block has a weight of 19.6N (mass*gravity) and will have a normal force of the same value (Fn=W). The force required to put the object into motion will be (static friction constant)*Fn, or 19.6N*0.3 = 5.88N. Since this number is less than the net force applied to the block, the block will begin to move. From this point on, if the force is constant, the net force in that direction will be higher (as the kinetic friction constant is smaller than the static friction constant). The new frictional force will be 19.6N*0.1 = 1.96N. Thus, the net force in the direction of motion is 4.04N. (4.04N)/(2kg) = 2.02 m/(s^2). The block will be moving at 2.02m/s at one second, 4.04 at two seconds and so on.
Suppose the force of friction on a sliding object is 25 N The force needed to maintain a constant velocity is?
100 N===========================Answer #2:That depends on the direction of the pulling force.The horizontal component of the pulling force must be 100 N.So the more steeply the rope angles upward, the harder you'dhave to pull on it in order to create a 100N horizontal component.
What is the kinetic energy if 23.5 grams is moving 81.9 kilometers per hour?
23.5 grams = 0.0235 kilograms 81.9 km per hour = 22.75 metres per sec. So kinetic energy = 1/2*Mass*Velocity2 = 6.081 Newtons
What unit do you measure friction in?
you measure friction in Newtons
One person weighs 600 newtons and the other weighs 555 newtons Which person has more kinetic energy?
Kinetic energy measures the amount of energy a person has as they are in motion. In this instance, the person who weighs 600 Newtons has more energy.
How do you resolve a horizontal force of 40 newtons into two perpendicular directions one of them inclines by 30 degree with the horizontal and upwards?
-- The component that's inclined 30 degrees above the horizontal is[ 20 sqrt(3) ] = about 34.641 newtons. (rounded)-- The other component is inclined 60 degrees below the horizontal,and its magnitude is 20 newtons.
Can kinetic energy be measured in newtons?
No, kinetic energy is measured in Joules (J), as this is the SI unit for energy.
What is the formula for Coefficient of friction?
(Static coefficient of friction) Cf = horizontal force (newtons) required to overcome static resistance / vertical force (newtons) due to objects mass * acceleration due to gravity. Note: Moving friction coefficient is generally less.
What is the value of the normal force if the coefficient of kinetic friction is 0.22 and the kinetic frictional force is 40 newtons?
The normal force can be calculated using the equation: Normal force = Weight - Kinetic frictional force. Given that the kinetic frictional force is 40 N, the normal force depends on the weight of the object and additional information is needed to calculate it.
What unit measures friction?
Friction is a force. I'll get back to that.Weight, which is usually measured in pounds or ounces or grams (depending on where you live or what you're measuring), has an official (SI) unit of newtons. An object's weight depends on the gravity affecting that object. (You probably know that you weigh less on the Moon than you do on Earth.)Gravity, which is a force, is consequently measured in newtons, just like weight. All forces are measured in newtons.Therefore, friction, which is a force, is measured in newtons.
A horizontal force of 100 N pushes a box across a floor at a constant speed. what is the force of friction acting on the box?
If the horizontal velocity is constant, then the horizontal acceleration is zero,and the net horizontal force is zero.But if you are saying that the body was in constant motion and after that the force was applied, then the body will acccelerate because of the force. The net force applied on the body would be equal to the force applied to it when the body was in constant motion as here the force is in direction of the motion and hence the angle will be 0 giving the value of cos 0º as 1. Hence there would be no reduction in the net force
What are the units for friction force?
The units for friction force are typically in newtons (N) in the International System of Units (SI).
What is the metric unit for friction?
A friction is a force, so it would be measured in newtons. The coefficient of friction, on the other hand, is a ratio between two forces, so it is dimensionless.
A 26.0 KG-box was pulled horizontally in a rightward direction with an applied force of 278.0 Newtons. The coefficient of kinetic friction between the surfaces of the box and the floor is 0.230. Whats is the magnitude of the net force on the box?
2.5 m/s/s.
What are the units that friction is measured in?
The coefficient of friction is dimensionless; it has no units.
