Recent content by Zmuffinz

Homework Statement A Block slides down a frictionless ramp and a sphere rolls without sliding down a ramp of the same angle. the block and sphere have the same mass, start at rest from point A and descend through point B a) Consider the sphere rolling down the incline without sliding. If...

yea i didnt know what to do for the question, i can't get the density of air or drag coeffient so i can't work anything out by rearranging the equation for A

Homework Statement Marks: 1 In a recent mystery, the hero saves himself by spreading out a windshield tarpaulin to reduce his terminal velocity. A skydiver of 75 kg mass has a terminal velocity of 60 m/s. If the hero has the same 75 kg mass, the same density as the sky diver, and a drag...

and how do i calculate work against friction?

well you see that's why I am stuck, i wasnt given an angle, or mass of the block or anything so I've got no clue as to what to do:(

Homework Statement A block is pushed across a rough horizontal surface from point A to point B by a force (magnitude P = 5.4 N) as shown in the figure. The magnitude of the force of friction acting on the block between A and B is 1.2 N and points A and B are 0.5 m apart. If the kinetic...