Billiard ball a of mass ma = 0.125 kg moving with speed va = 2.80 m/s strikes ball b, initially at rest, of mass mb = 0.140 kg . as a result of the collision, ball a is deflected off at an angle of θ′a = 30.0∘ with a speed v′a = 2.10 m/s, and ball b moves with a speed v′b at an angle of θ′b to original direction of motion of ball a. part csolve these equations for the angle, θ′b, of ball b after the collision. do not assume the collision is elastic. express your answer to three significant figures and include the appropriate unitspart dsolve these equations for the speed, v′b, of ball b after the collision. do not assume the collision is elastic. express your answer to three significant figures and include the appropriate units