Hartranft+Lab+14

Hartranft Lab 14

Procedure: We stuck a ball into a gun and pulled the lever so it shot into a pendulum. We used multiple trials for accuracy.

Analysis: V(Ball) = (2gh)^(1/2) X [M(ball) + M(pend)]/M(ball)

g = 9.8m/s^2 h = .02m M(Ball) = 7.6 M(pend) = 86.5

V(Ball) = 7.75m/s

Both energy or kinematics can be used to find the ball's velocity. With distance measued in the x and y directions we can find time by d = 1/2at^2.

t = (2d/g)^1/2 t = .42s

V = d/t

Therefor, v = 5.4m/s

% error - 30.3%