57. Before the launch, the mechanical energy ismech,00EΔ=. At the maximum height hwhere the speed of the beetle vanishes, the mechanical energy is mech,1Emgh. The change of the mechanical energy is related to the external force by mechmech,1cosavgEEEmghFdφΔ−Δ==,whereFavgis the average magnitude of the external force on the beetle. (a) From the above equation, we have
This is the end of the preview. Sign up
access the rest of the document.
This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.