Recent content by billu77

thanks...could u please explain how u got to that formula. the one I have in book is: T= 2\pir/v thanks

Homework Statement A pilot makes a turn of radius 50.0 meters at a speed of 26.0m/sec. How long will it take him to make a 90 degree turn? Homework Equations tangential acceleration = final velocity - initial velocity/time The Attempt at a Solution tangential acceleration = final velocity -...

thanks...i did not pay attention to the fact that frictional force is just acting along the slide and not at an angle...appreciate ur help

Homework Statement A slide similar to der stuka is 35.0 meters high but is a straight slope,inclined at 45.0 degrees with respect to the horizontal. If a 60kg woman has the speed of 20.0m/s at the bottom and the work done by frictional force on the woman is -8.58 x 1000J, find the magnitude...

thanks a lot...i got the correct answer using the equation: 0.210 x 9.8 x height = 0.210 cos 20 x horizontal distance of incline + 0.210 x 9.8 x distance traveled totally

I have no clue about the method that u mentioned...atleast if you could show me the equations, i can try to work out the solution...gh alone would be 9.8 x 20= 196...i am attaching an image of the problem...would appreciate if you could provide the equations and i can take it from there...thanks

thanks...i tried again with sin instead of cos and it didnt work out...there is friction on both surfaces...as it says on the last line "if the incline has a co-efficient of kinetic friction"...can u solve it showing all the steps...thanks

Homework Statement Problem A skier starts from rest at the top of a frictionless incline of height 20.0 m which makes an angle of 20 degrees with the horizontal. As the bottom of the incline, the skier encounters a horizontal surface where the coefficient of kinetic friction between skis...