calculate the coefficient of kinetic friction for tyre rubber on the road surface
You have to have much more info to do this. On way is to do braking distance.
Vf^2=0=Vi^2+2 Forcebraking/masscar)*distancestopping)
and forcebraking=masscar*coefficent
so this ends up as
2*coefficent*distance=initialvelocity^2
and you solve for the coefficent.
hearing rattles from a snake, a boy make two rapid displacements of magnitude 1.8m and 2.4m in sketches show how the two displacements might add up to give magnitude of
To calculate the coefficient of kinetic friction for tire rubber on a road surface, you will need the following information and steps:
1. Measure the mass of the object (such as a car) that is in contact with the road. Let's say the mass is given as "m" in kilograms.
2. Determine the force required to keep the object moving at a constant speed on the road surface. This force is known as the force of kinetic friction. Let's say this force is denoted as "Fk" in Newtons.
3. Measure the normal force, which is the force exerted by the road on the object perpendicular to the road surface. The normal force ("N") is equal to the weight of the object and can be calculated using the formula N = m * g, where "g" is the acceleration due to gravity (approximately 9.8 m/s^2).
4. Use the formula for kinetic friction to calculate the coefficient of kinetic friction ("μk") using the equation μk = Fk / N.
By following these steps and obtaining the necessary measurements, you can determine the coefficient of kinetic friction for tire rubber on the road surface.