Data:
Net Force of Collision: 20,000 pounds/90,000 Newtons
Mass of Vehicle: 6,500 pounds/29,250 Newtons
Time Duration of Collision: 0.15 seconds
Vehicle Speed after Collision: 0
Other Data:
Car applied brakes around 24 meters before the steel swing gate.
Coefficient of Static Friction: around 0.732
Coefficient of Kinetic Friction: around 0.798
I do realize this is a physics problem, but I can't seem to figure out the math behind it. Anybody willing to help?
You don't say what you are trying to calculate, so I've assumed you want to find the approaching velocities.
Also you can't have a mass in Newtons, so I've converted your 6500 pounds (mass) to kg. (there is a difference between lbf (force) and lb (mass)).
On second thoughts I should probably have assumed kinetic friction. However, static friction is usually higher than kinetic friction, so perhaps I've used the right numerical value after all!
You don't say what you are trying to calculate, so I've assumed you want to find the approaching velocities.
Also you can't have a mass in Newtons, so I've converted your 6500 pounds (mass) to kg. (there is a difference between lbf (force) and lb (mass)).
On second thoughts I should probably have assumed kinetic friction. However, static friction is usually higher than kinetic friction, so perhaps I've used the right numerical value after all!