A balll of mass m=60 g is shot with speed vi=22 m/s into the barrel of a spring gun of mass M= 240 g initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring. Assume that the increase in the thermal energy due to friction between the ball and the barrel is negligible.
(A) What is the speed of the spring gun after the ball stops in the barrel?
(B) What fraction of the initial kinetic energy of the ball is stored in the spring?
The answers are:
(A) 2.35 x 10^3 J
(B) 352 J
But I don't know how to get these answers, please help me!
2006-11-06 14:06:00 · 1 answers · asked by gods1princesschanel 1 in Science & Mathematics ➔ Physics
CORRECTION THE ANSWERS ARE:
(A) 4.4 m/s
(B) 0.80
2006-11-06 14:14:18 · update #1
www.cabrillo.edu/~cfigueroa/4A/4Aexamples/4Aexample9-F06.pdf
2006-11-06 15:13:30 · answer #1 · answered by afchica101 1 · 0⤊ 0⤋