Recent content by collegegirl

Homework Statement Car: mass = 200g Moving at 30 m/s Braking force of 10000N. How far does the car travel before stopping? Homework Equations W=m x N w = F (delta x) The Attempt at a Solution I found work, (2000)(10000) = 20,000,000 Then rearranged the second equation to get...

Would the three forces be gravity, the weight of the crate on the ramp, and the ramp pushing up on the crate? If so, the only one I have numbers for is gravity??

Homework Statement A 200N crate rests on a ramp, the angle is 20 degrees with the horizontal. What is the coefficient of static friction between the crate and ramp surfaces Homework Equations T=N/cos theta The Attempt at a Solution 200/cos25 = 219 I don't know where to go from...