A lo g bullte is stoped in abock of wood of mass 5kg the speed of the bullet-plus-wood combination immediately after the colliisionTo 0.60mis A, what is the chonge in the kineric energy of the system? Mblox10-3kg Mus Skg v= 0 60m's​

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

read more on -