Two masses are joined by a massless string. a 30-n force applied vertically to the upper mass gives the system a constant [ans : 490 n] [ans : 1.3 × 10−23 m] [ans : 19 cm] [ans : 1.96 ms−2 ] [ans : 680 m] upward acceleration of 3.2 m/ s 2 . if the string tension is 18 n, what are the two masses?

(8%) problem 12. a bowling ball of mass mb 3 kg 's rolled down the lane with a velocity ofy-2/ m s lt strikes a single remaining pin mp 0.93 kg head on. after the collision the bowling ball has a velocity (in the same direction) of v2 1.1 m/s. = ▲ 33% part (a) write an expression for the velocity of pin in the horizontal direction after the impact, im ,, 33% part (b) what is the pins speed in ms? 33% part (c) assuming the coefficient of friction s μ,-0.1. how far in meters could the pin slide before stopping if it doesn't topple?