MEDAL GIVEN TO CORRECT ANSWER.
A water-balloon launcher with mass 2 kg fires a 0.75 kg balloon with a velocity of 14 m/s to the west. What is the recoil velocity of the launcher?

A. 5.3 m/s east
B. 8.0 m/s west
C. 37 m/s east
D. 3.8 m/s east

Question

MEDAL GIVEN TO CORRECT ANSWER. 
A water-balloon launcher with mass 2 kg fires a 0.75 kg balloon with a velocity of 14 m/s to the west. What is the recoil velocity of the launcher?

 		A.	5.3 m/s east
 		B.	8.0 m/s west
 		C.	37 m/s east
 		D.	3.8 m/s east

anonymous · Answer

0.75 x 14m/s= 2kg x V

V =5.3 m/s East because opp direction due to conservation of momentum