Recent content by piercegirl

Well i guess I am just confused on the following: I know that static friction is bigger and requires more force than that of friction force. The angles seem to indicate that the Static is 30.8 and friction is 35.2 is that right?

Homework Statement In order to determine the coefficients of friction between rubber and various surfaces, a student uses a rubber eraser and an incline. In one experiment, the eraser begins to slip down the incline when the angle of inclination is 35.2° and then moves down the incline with...

ok :) so I have Force of W(Gravity) Pointing down on neg x-axis and i have a Tension vector pointing out in the 3rd quadrant making a 25 degree angle and finally the Normal force vector pointing up. Is that right?

Homework Statement You have a fuzzy dice with mass .2kg hanging from the rear view mirror. When you step on the gas the dice makes an angle of 25 degrees. what is car's acceleration? Homework Equations F=ma...? Fr=mac..? The Attempt at a Solution Im really not sure where to start...

sorry about that

Homework Statement Suppose that the position vector for a particle is given as a function of time by (t) = x(t) + y(t), with x(t) = at + b and y(t) = ct2 + d,where a = 1.70 m/s, b = 1.20 m, c = 0.122 m/s2, and d = 1.18 m. (a) Calculate the average velocity during the time interval from t =...

thanks! your the best! sweet dreams

xt=(3.00i+2.00j)t+(1.16i+1.65)t2 (3.00i)t+(1.16i)t2 for x?

i don't know. I am thinking its (0,0)

i thought x0 meant the x component of v0, being 3.00i?

sure, xt=3i+(3.00i-2.00j)t+(1/2(6.3i+8.9j/2.70))t^2

so shall i let t= to some random num and solve for xt?

see it. My apologies, for some reason i didnt see it before. I got t=.90 but idk

is there such a formula? It seems like the kinematic eq's keep changing :/

oh! so we are solving for Vt?