Two weights m₁-2 kg and m2=1 kg are linked by a thread and thrown over a pulley weighing M-1 kg. Find: (I) the acceleration with which the weights move, (2) the tensions T, and T2, of the threads which the weights are attached to. Consider the pulley as a homogeneous disk. Disregard friction.​

Which two particles are found in the center of an atom

The base of a 50-meter tower is at the origin; the base of a 50-meter tree is at (0, 50, 0). the ground is flat and the z-axis points upward. the following parametric equations describe the motion of six projectiles each launched at time t = 0 in seconds. (i) r (t) = (50 + t2)k (ii) r (t) = 2t2 j + 2t2k (iii) r (t) = 50 i + 50 j + (50 − t2)k (iv) r (t) = 2t j + (50 − t2)k (v) r (t) = (50 − 2t) i + 2t j + (50 − t)k (vi) r (t) = t i + t j + tk (a) which projectile is launched from the top of the tower and goes downward? at time t = , the projectile hits the ground at point (x, y, z) = . (b) which projectile hits the top of the tree?

Acar of mass 800kg is moving at a speed of 2.2m/s.