Physics; Momentum question: Two carts are launched together on a horizontal, low
ID: 1320806 • Letter: P
Question
Physics; Momentum question:
Two carts are launched together on a horizontal, low-friction track. the carts are in contact, end-to-end, and move with the same initial velocity of 30 cm/sec to the right. cart B is "ahead" of cart A, (for example, B is to the right of A.) Cart B has a mass of 1.5 kg while A has a mass of 0.5 kg. while the carts are in motion, an "explotion" occurs. Cart A rebounds to the left with a speed of 5 cm/sec.
What is the speed of cart B after the explosion? explain and show your work please.
Explanation / Answer
initial momentum = final momentum
pi = 2*30 = 60 kgcm/s i
pf= 0.5*(-5) +1.5 vb
vb= 62.5/1.5 = 41.6667 cm/sec