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Unformatted text preview: = - CL d. >cUD Phys207W09Exam I N a m e YiA.,-erYou must show all of your work for credit. Include units with your numerical answers.1.  Starting with a=dv/dt, derive the following equations of motion for constantacceleration by integrating and applying appropriate boundary conditions.v=vo-atx=xo+vot+(1/2)at2Now combine the two equations to eliminate the variable t to findc) v2=v„2+2a(x-x„)V - V ok o+ V( -f fr2K— }CC=So ou+si.AQ-V 24-16 2---)-V V )V r, — V z,2ck . c (^ V o 2 2 -2_V + - Voa-e,v„aciL Af‘c v32--57h1(5YrqV6ja2.  A boat is attempting to traverse a river whose current has a speed of v= 5m/s. Theriver has a width of d=100m, and the boat has a speed of v=10m/s in still water.Determine the angle e which the boat should depart such that it lands on the oppositeside of the river.What is the time that it takes for the boat to reach the other side of the river?.C?Ac_\76qVrq r....
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