Recent content by dabouncerx24

Hi, I need a little help on a problem I did. I've most of the solutions but I think they're all wrong, can someone help me point out what I did wrong? Here is the problem: The Sojourner rover vehicle was used to explore the surface of Mars in 1997. Here is some info to aid solving the...

Can somebody please explain to me why sin(x+h) = sinxcosh + cosxsinh in detail.

thx a lot man :)

Sorry, some people (like myself) aren't well equipped with physics skills and know right off the bat what " Use conservation of momentum, then work the final speed for the block." means totally. Cyclo you've helped me out many times man, can u explain just a bit more. It is a new topic that...

Hey guys, I need help on some physics problems again. A 15g bullet strikes and becomes embedded in a 1.10kg block of wood placed on a horizontal surface just in front of the gun. If the coefficient of kinetic friction between the block and the surface is 0.25, and the impact drives the block...

Well I figured out that problem. Here is another one, please assist me. At an accident scene on a level road, investigators measure a car;s skid mark to be 88m long. It was a rainy day and the coefficient of friction was estimated to be 0.42. Use these dta to determine the speed of the car...

I don't get why adding the friction force to 3500N is logical? Can you please explain it to me.

The problem is, a 1000kg car pulls a 450kg trailer. The car exerts a horizontal force of 3500N against the ground in order to accelerate. What force does the car exert on the trailer? Assume a friction coefficient of 0.15 for the trailer.

I'm sure I will get better as time progress, thank you for the warm welcome for I am sure I will be coming here A LOT during the school year. Well...another problem already. A car can decelerate at -5.10 m/s^2 w/o skidding when coming to rest on a level road. What would its deceleration be...

thank you very much

Forces analysis..meaning the Friction Force = Ums + Fn equation?? The component of force of gravity will simply be Fwsin? right. I am so bad in physics...

The coefficient of friction between hard rubber and normal street pavement is about 0.8. On how steep a hill (max angle) can you leave a car parked? I have no idea how to do it since it doesn't give you the weight or anything.