What is the firing speed of a balistic pendulum?
.
Data
Mass of ball: 68.7 grams = .0687kg
Mass of pendulum: 116 grams = .116kg
Height difference: 11.8 cm = .118m
Mass of system after collision: 184.7 = .1847kg
Mass of pendulum: 116 grams = .116kg
Height difference: 11.8 cm = .118m
Mass of system after collision: 184.7 = .1847kg
Data Anylisis
KEi=PEf=m(t)hg
KEi=.1847kg*.118m*9.8m/s^2
KEi = .2135
KEi = .5mv^2
.2135 = .5(.1847)v^2
.1.5207m/s = v
p(final) = m*v
p = .1847*1.5207
p = .2808
p(ball) = p(final) = m(ball)*v(ball)
.2808 = .0687*v
4.0886m/s = v
KEi=.1847kg*.118m*9.8m/s^2
KEi = .2135
KEi = .5mv^2
.2135 = .5(.1847)v^2
.1.5207m/s = v
p(final) = m*v
p = .1847*1.5207
p = .2808
p(ball) = p(final) = m(ball)*v(ball)
.2808 = .0687*v
4.0886m/s = v
Conclusion
The ball was launched at a speed of 4.0886m/s
Experiment to test calculation.
The best experiment ever!
It involves a gun, shiny balls and launching things.
Launch the shiny metal ball, and shoot it with a well-calibrated radar gun. Look at the reading.
It involves a gun, shiny balls and launching things.
Launch the shiny metal ball, and shoot it with a well-calibrated radar gun. Look at the reading.
