Physics Lab 6
Other
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Ballistic Pendulum
Lab 6 (See Chapter 7 and especially Example 7-10, p. 178) involves the ballistic pendulum. This simulation can be downloaded from Grantham’s Website; its file name is “BALLISTIC PENDULUM PO.ip”. In this simulation, an object (the projectile) strikes and becomes embedded in a block of wood suspended from the ceiling by two strings of negligible mass. You will be asked to read the measurement tables and make calculations concerning total mechanical energy and momentum (energy and momentum are conserved since friction and air resistance are absent). These measurements will result in the determination of the initial velocity of the projectile (actually the initial velocity and the velocity upon impact are identical). Fill in the blanks in the Lab 6 Answer Sheet at the end of this lab. Send in this Lab Answer sheet at the end of each week when you have finished the labs(s) for the week. These can be sent via USPS (postal), or scanned and sent as .pdf or picture files (e.g., .tif, .gif, etc.) or by any other method of your choice as long as the Answer Sheets are legible and translatable by Grantham University.
Run the simulation and fill in the blanks below and copy over to the Lab 6 Answer Sheet. Find the time, t, that the bullet embedded in the block of wood reaches its maximum height. T = _____.
q. If h = Δy = yf – yi, where h is the change in the height of the block at equilibrium to its maximum height, from the position measurement table h. h = ____________.
q. Calculate the velocity of the bullet: v = _________.
