At West Virginia University, each Halloween, there is a pumpkin-drop contest. College, high-school, and middle-school students participate.
Question:
At West Virginia University, each Halloween, there is a pumpkin-drop contest. College, high-school, and middle-school students participate. The goal is to drop a pumpkin off the top of the main engineering building (assume about 100 ft) and have it land close to a target without being damaged. Packing and parachutes are commonly used. You have a theory that the terminal velocity at which a pumpkin packed in your newly invented, proprietary bubble wrap can hit the ground and remain intact is 50 m/s. You will use no parachute, and the shape will be approximately spherical. The pumpkin plus wrapping has a diameter of 40 cm. By calculating the actual terminal velocity, determine whether the pumpkin will exceed the desired terminal velocity.
Assume that the wrapped pumpkin has the specific gravity of water, and assume the air is at 25°C and 1 atm.
Step by Step Answer:
Analysis Synthesis And Design Of Chemical Processes
ISBN: 9780134177403
5th Edition
Authors: Richard Turton, Joseph Shaeiwitz, Debangsu Bhattacharyya, Wallace Whiting