For the largest mass of the pendulum you varied the muzzle velocity of the sprin

ID: 1369535 • Letter: F

Question

For the largest mass of the pendulum you varied the muzzle velocity of the spring gun from slowest to fastest.

[1] How did the distance between the pivot point and the center of mass of the pendulum change with increasing muzzle velocity?

(a) It did not change (b) It decreased (c) It increased

[2] How did the velocity of the pendulum immediately after it captured the ball vary with increasing muzzle velocity?

(a) It increased (b) It stayed the same (c) It decreased

[3] How did the maximum change in altitude of the pendulum ( h ) change with increasing muzzle velocity?

(a) It increased (b) It stayed the same (c) It decrease

My data were

M pendulum = 49.8g M ball = 65.9

17, 28, 38 degree

part a )

a ) it did not change

part 2 )

momentum remain conserved

mu = (m+M)V

v = mu/(m+M)

it increasec

part 3 )

v = sqrt(2gh)

it increased