On a road trip, a driver achieved an average speed of (48.0+a) km/h for the first 86.0 km and an average speed of (43.0-b) km/h for the remaining 54.0 km. what was her average speed (in km/h) for the entire trip? round your final answer to three significant figures. a = 15 b = 1

(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?