Question

A) An object of mass 2.75 kg is moving with a velocity v = (3.50î − 5.20) m/s. What is the angular momentum of the mass relative to the origin when it is at the location (1.50, −1.50, 1.50) m? (Express your answer in vector form.)

L = ? kg · m²/s

B) Suppose you start an antique car by exerting a force of 270 N on its crank for 0.315 s. What angular momentum is given to the engine if the handle of the crank is 0.300 m from the pivot and the force is exerted to create maximum torque the entire time?

Answer 1

215 Ka, (3.51 -5.2 K) m/s T50 -5+1.5 k A m linear momuntum mt 9.635 0-14.3 3 -I.5 9.625 -14.3 5 A K 5 -1-5 -14.3 9.625 14.3 9.625 (21.45-0)-3(-21.45 -144375) +R(0+ 144375) (21.453s. 89+ O 14.44 K) g ms tュ 0.315 s, r=3m Fa 210 N ) rf n 81 N-m O 3x270 ot DL .At = 0\x0.315 - 25.52 am