Question

p-14981477 013 The bullet collides with the block. Then the bullet-block systom swings upward by height As shown in the figure above, a bullet of mass m strikes ballistic pendulum of mass M. After the collision, the bullet remains embedded in the bock. The center of mass of the pendulum nisee a vertical data (a) Let , be the kinetic enargy of the bullet-Block system just before the collision and Ky be the kinetic anergy of the nystem immediataly after the collisian. Which statemant is correct? (b) what is the kinetic enerw of the blet-block system immediately after the colsion, Given, m, H. h, and acceleraten dee te vRy g, oo NOT plug-n number far (d) What is the speed of the bullet before the coltside, giveni ", h.nd acceleration deo ta graity g. D9 NOT plug in an·mber for

Answer 1

a) Ki > Kf

b) KE just after collision = max PE gained = (m+M)gh

c) 0.5(m+M)v'² = (m+M)gh

v' = sqrt(2gh)

d) mv = (m+M)v'

v = [(m+M)/m] x sqrt(2gh)