Evaluate how fast was the car going

Assignment Help Physics

Reference no: EM13554930

A policeman investigating an accident measures the skid marks left by a car. The distance between the point that the driver slammed on the brakes and the point where the car came to a stop was 56.0 m. The coefficient of kinetic friction between the tires and the road was 0.150. How fast was the car going when the driver applied the brakes?

Reference no: EM13554930

Questions Cloud

At the earth''s surface a projectile is launched straight up : At the Earth's surface a projectile is launched straight up with aspeed of 10.1 km/s. To what height will it rise. Ignore airresistance and the rotation of the Earth.

Determine the magnitude of the electric fieldat the point : Two infinite positively charged plates with a uniform chargedensity of 6.80 μC/m2 are placedparallel to the yz-plane with one plane passing through x = 0.65cm and the other through x = -0.65 cm, as shownin the diagram below.

Develop an expression for the electric field : Develop an expression for the electric field anywhere inside thecylinder. To check your result, what is the magnitude of theelectric field at r = 5.90 cm, where R = 9.80 cmand ρ = 7.55 μC/m3?

Find the specific gravity of the oil and the alcohol : An object was weighted in water, oil and alcohol. Its loss of weight in water was 75.0 gr.-wt., in oil 49.0gr.-wt., and in alcohol 60.0 gr.-wt. Find the Specific Gravity of the oil and the alcohol

Evaluate how fast was the car going : A policeman investigating an accident measures the skid marks left by a car. How fast was the car going when the driver applied the brakes

Evaluate the energy for vacancy formation : The number of vacancies in some hypothetical metal increases by a factor of 6 when the temperature is increased from 1100 K to 1200 K. Calculate the energy (in J/mol) for vacancy formation assuming that the density of the metal remains the same ov..

Vehicle is speeding-highway from onramp and starts chasing : A vehicle is speeding at 115 km/h on a straight highway when a police car moving at 145 km/h enters the highway from an onramp and starts chasing it.

Explain what is the molecular weight of the substance : A soln was prepeared by dissolving 5.6 g of non electrolyte substannce in 45 g of water. the freezing point depression was .8 C. what is the molecular weight of this substance

Estimate the speed of the 50-kg disk after the collision : A 50-kg disk is fired along the positive x axis with a speed of 9 m/s toward a 57-kg disk that is initially at rest. estimate the speed of the 50-kg disk after the collision

User Account

All Pages