p Assignment 16 (Exam 2 Recap) Name: carned a raw score of A on Exam 2, you do n

Question

p Assignment 16 (Exam 2 Recap) Name: carned a raw score of A on Exam 2, you do not need to do this assignment. Turn in this sheet dicate that you earned 90% or better on Exam 2. differentiation to findin ters ofx and y for the curve:y2 Also, write ion ofthe tangent line ' ·..urve at the point (-1,1). e absolute minimum a 79 MATH 1710 Group Assignment 17 A car traveling on a straight road at a constant speed subjected to an acceleration of 12 ft/sec? It reaches a speed Name: of 60mplatermoeling242? what was the speed of the car initially?

Explanation / Answer

We have
v^2 = u^2 + 2aS

12 ft/sec^2 must first be converted to mile/hr^2

12 ft/sec^2 * (1mile/5280feet) * (3600^2 sec^2/1 hr^2)

29454.5454545454545455 mi/hr^2

And similarly 242 feet is 242/5280 miles

So, now subbing in those :
60^2 = u^2 + 2*29454.5454545454545455 * 242/5280

3600 = u^2 + 2700

u^2 = 900

u =30 mph

So, the initial speed = 30 miles/hr ----> ANS

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