(1) v = ? for c = r + R E1 = Rotating energy = 0.5*I*w^2 = 0.5 * 2/5 * mr^2 * [v/(R+r)]^2 = m/5 * [r/(R+r)]^2 * v^2 E2 = Kinetic energy = 0.5 * m * v^2 E3 = Potential energy = m*g*(r+R)(1-cosθ...
(1) m2*g - T2 = m2*a (2) T2 - T3 = M*a/2 (Note) (3) T3 - T1 = M*a/2 (Note) (4) T1 - m1*g = m1*a Eq.(1) + Eq.(2) + Eq.(3) + Eq.(4): a = (m2-m1)/(m1+m2+M) ..... (5) Both Eq...
(1) Basic concept v(center) = v(tangent) a(center) = a(tangent) (2) f = Friction f directs toward right. (3) Newton equation F + f = M*a (4) Torque equation (F - f) * R = I * Alpha = (0.5*M...
I = ΣM*R^2 = R^2*ΣM = (3.15^2 + 2^2)*(3 + 2 + 2 + 4) = 13.9225 * 11 = 153.1475 kg.m^2
(a)Vab=1*3=3V (b)I1=1+3/6=1.5A (c)I2=I1=1.5A (d)Vc=1.5*4=6V (e)P=6*1.5=9W
1.W = ? if L = s Q = Angle measured from P1 L = r*Q ΣFt = F(L) - m*g*sinQ = 10 - 2L - mg*sinQ = 10 - 2r*Q - mg*sinQ W = ∫Ft*dL...
... at point X is greater than that at point Y, this shows the field intensity at Y is stronger than that at X. ...
