Question

Two barges, each with a displacement (mass) of 440 Mg, are loosely moored in calm water. A stunt driver starts his 2040-kg car from rest at A, drives along the deck, and leaves the end of the 15° ramp at a speed of 45 km/h relative to the barge and ramp. The driver successfully jumps the gap and brings his car to rest relative to barge 2 at B. Calculate the velocity v2 imparted to barge 2 just after the car has come to rest on the barge. Neglect the resistance of the water to motion at the low velocities involved Answer: v2 i m/s

Answer 1

di'atram CaT velacity in figur barge Cnd Shoon beloo Vo V velocity o ba Assumo VID re OaHise Va - uclocity of th CoT vith borge SPect to of absaluk vlociny Compons t Of the CoT diagrom from tho dboue Va Cos1s Va Cos15 45 V CosI5-VI

V- 41.47- from momontum of Conserua f'on thu fn di rection (Vl2 barge Tnass oher CaT of mass abou expression nay Va Cos 15- 440 X 1000 ) VI ( 45 Cos 15- V 2 15. 6 UI VI O.2 kmh may 45 Cos 19 457 0.96 G-

49.27 Appy ConseyuaHon thu momon tum to Car nd dIkcion >Rio メtw (ver)a (mitm MiYOt ) 2 Cmitm2) exp recsion. in a bau e valu put 2090 4.27 440 x (000t 2040) O(99 60 Em V2 コ O 9969 m 0こてへ Em Soa9 14