Recent content by jamesblim168

what do you mean?

Homework Statement you push a 25 kg box across a wooden floor at constant speed. how much force do you exert on the floor? (mu(k) = 0.20Homework Equations Ff=<uFn The Attempt at a Solution this is wat i get so far mass = 25kg uk= .20 .20<.20x25 .20<5 is this correct? I am confuse coz...

Homework Statement if the coefficient of friction between a 30 kg metal block and the floor is 0.16, what force is required to roll this block across the floor at a uniform speed? how much work is done? find : weight of force, normal force, force applied and fricitional forceHomework Equations...

can anyone give me the formula's to use?

voko thank you... but i really don't understand hehehe sorry guys...

why are we talking abouit energy now? I am getting more confuse... oh my god... help!

now its just got more complicated... hehehe can you just solve it then explain it to me why? really appreciate it voko... thanks

is there an equation involve here?

can anyone solve this?

so your saying il make assumptions so there's no wrong answer here? outcome will depend on my assumptions?

where are you masters?

is this the right formula for getting the initial velocity? Vo = V - at Vo - initial velocity V - Velocity a - acceleration t - time

but i still have to get the time for me to calculate initial velocity right? then how can i get the time? why is this sooo confusing... sorry guys...

what is the equation? what formula are you using to get the initial velocity?

so what is my initial veloctiy if my angle is 45 degress?