Recent content by lilwigz

Homework Statement Larry throws a peach vertically upward from a height of 1.2m with an initial velocity of 3.2m/s. What is the maximum height the peach reaches? Homework Equations a= -9.81m/s^2 The Attempt at a Solution I used the equation Vf^2=Vi^2+2a(delta x)

im guessing it's because the way the box only moves up and down the ramp

no clue

it will always be 0 because cos 90 is always 0

i know what perpendicular is, i don't get what you're asking wouldn't it be Fgp-Ff

W=fdcos(0) so W=f x 2.5m cos 180

F= Fgp-Ff F=Fsin30-uFn

Homework Statement Starting from rest, a 5.0kg block slides 2.5m down a rough 30 degree incline in 2.0s. Determine the following: A) the work done by the forces of gravity ( my answer 61.31J) B) the mechanical energy lost due to friction ( my answer 45.69 J) A) the work done by the normal...

yes that is what we did, my mistake. yes i now understand. thank you both very much

thank you for your help!

we did an experiment in my class when you throw a ball directly vertical and a ball horizontally they land on the ground at the same time, but with the balls being thrown above and below the horizontal i suppose the results would be different

so ff x d x (cos180) = -560 480.69 x d x cos 180= -560 d= 1.16??

what would N be?

i don't have fn or the distance

the balls thrown vertically and horizontally will land at the same time though right?