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location Italy
age 23
visits member for 1 year, 11 months
seen Nov 21 at 9:51

Jan
12
comment exercise concerning the inclined plane
Yes! Thanks for your help!
Jan
9
comment Work done by the air resistance
Thanks! The speed of the ball when it returns to the starting point can be calculated using the work found $$ W = 1/2*m*v^2 $$ Right?
Jan
9
comment Work done by the air resistance
I have calculated the kinetic energy and the potetial energy; the latter is less than the first; so the work done by the air is W = Ek - Ep ?