Recent content by Booke

As the car is brought to a stop, there is no force acting on the person until he/she hits the dashboard, if no force acts on him/her, F=ma, there could be no acceleration on the person. The person's change in momentum only occurs once he/she hits the dashboard so time we are concern with starts...

I can tell you that the spring is not compressed 9 meters unless you have one big dart gun hehe. Looks like you have your numbers mixed up. Potential energy of a spring is equal to 1/2k*x^2 so your equation should look like this .540=1/2k*x^2, x is how much the spring is compressed.

I'm a bit rusty but here's my try since no one's post yet. Your first equation should be all you need. F=dp/dt dp=0-73*100km/h*.278(m/s)/(km/h) dt=.25s The time it takes the person to hit the dashboard shouldn't be needed.

The problem statement= what they want you to find. Here it will be F All variables and given data= you have your equation, F=force, M=mass and a=acceleration. Your known data is the numbers they give you. Make sure that 10 is in units of kilogram. Relevant equation= F=MA Solution= You know...

Take as much math as possible after considering credits/financial/student aids. It can't harm you. The better you are at math, the more comfortable you'll be at solving analytical problems and or any problem in life. Math is a tough subject that forces the brain to think hard. If you're finding...

Is the sidewall of your tire damage? or did the tire pop from the rim? If the tire popped from the rim, that's a relatively easy/cheap fix as long as your tire is not damage.

A good case study for mechanical engineering would be Geothermal heating. There's ton of info out there, you can compare and contrast Geothermal heating to conventional heating.