Recent content by pharmguy

please?

Homework Statement Example: A 50 kg gymnast does giant circles around a horizontal bar. At the top of her swing her center of mass is 1.0 m above the bar traveling 1.2 m/s. what is the speed of her center of mass at the bottom of her swing where her center at mass is 1.0 m below the bar? ( No...

Alright thanks a bunch.

Homework Statement If the kinetic coefficient of friction between ice skates and ice is 0.01, what is the average forward force necessary for a 500 Nt skater to maintain a constant forward velocity? Homework Equations f = (Uk)(N) The Attempt at a Solution f = (Uk) (N) f = (0.01)...

Awesome thanks a bunch! Is there a rating system or something somewhere on this site to rate people's help?

Homework Statement It is desired to have a pile driver strike a pile with a speed of 20 m/s. Assuming the driver to be in free fall, from how high above the pile should be released? Homework Equations Used v^(2) = V(o)^(2) + 2ax v=final velocity V(o) =initial velocity a=acceleration...

When I got to the Physics Forum I didn't realize I wasn't suppose to post in the Physics General Forum and when I found out yesterday probably after 5 min. of posting it up I thought I deleted it by going to my "PDF" then "unsubscribing it" which I thought I deleted my other post and then I made...

Homework Statement Question: A motorcycle traveling at 40 ft/s is given an average acceleration of 4 ft/s^(2) for 10 s. Find the final velocity. Homework Equations Average Velocity= [displacement][/total travel time ] v= [[x][/2] - [x][/1]][/[t][/2]...