Recent content by eltavo809

Homework Statement A light beam incident on a glass slide at an angle of 60 ˚, being partly reflected and partly refracted. It notes that reflected and refracted beams are each at 90 ˚ What is the refractive index of glass? Homework Equations n1sinσ1 = n2sinσ2 The Attempt at a...

Homework Statement A motorcycle with a mass of m1 = 200 kg and a speed of v1 = 120 km/h collides with a car of mass m2 = 600 kg, traveling in a perpendicular direction to the motorcycle. After the collision, both vehicles travel in a direction that forms an angle of 60°. Find the initial...

Hey, dontdisturbmycircles, first of all let me thank you all your time and dedication. Yes, i know how to derivate and find a minimun of a function. I just was not expecting to come to that kind of solution. Having said that, thanks again for the help. I got it now!

So, after some basic algebra, I got this: v0 * (t - 6) = 0.2 * t2 -0.2 t2 + v0 t - v0 6 = 0 From the quadratic formula, I get: (- v0 t +/- √ v02 + 4 * 0.2 * 6 v0) / 0.4 This should give me the time at which she catches the train, right?

Homework Statement A train pulls away from a station with a constant acceleration of 0.40 m/s2. A passenger arrives at the track 6.0 s after the end of the train has passed the very same point. What is the slowest constant speed at which she can run and catch the train? Homework Equations X...