Recent content by sentimentaltrooper

Thank you for this website. I just used it and played through the interactive game. So I can use square root of x component squared and y component squared to find magnitude. And I can use head-to-tail method for adding and subtracting vectors. But where exactly does sin come into play? And how...

i know the basics of trig soh cah toa so sin would be... opposite over hypotenuse... but opposite length of triangle is not even defined here and neither is hypotenuse so what use is this sin ? The component of weight parallel to slope: we have 6 kg and 4 kg so just multiply both by 9.8 no? (6...

To find the tension in the rope connecting 6.0 kg block and 4.0 kg block we do 6.0 kg = m1, 4.0 kg = m2, 9.0 kg = M (m_2 + m_1)a - Ma = Mg - m_2 gsin\theta - m_1 gsin\theta Why do we use sin in these equations and not cos?

Thank you so much for this.

I thank you for your responses and I apologize for this but for some reason I still cannot understand why it is double, or twice as much work.

I have already concluded that the way to solve this problem is through (20 N - (3 kg * 9.8 m/s^2 * 0.16) - (2*(1 kg * 9.8 m/s^2 * 0.16))) / 3 kg I have several questions: Why do we multiply the second set of parentheses by 2? Why do we count the friction between the 1 kg box and the 2 kg box...