7. On Planet Math, Veronica is skipping. The height of her feet while skipping, can be modelled by the equationy(x) = sin²x + 2sinx + 1, where y is the height of Veronica's feet above from the ground in centimetres, and xis the time of the number of seconds that have passed since Veronica started jumping.a) How many times does Veronica's feet hit the ground in the first 25 seconds?b) How many centimetres is Veronica off the ground after 3 seconds?

The feet hits the ground, when y(x)=0. Solve the equation: y(x)=0 in the given domain to determine…

Answered: 7. On Planet Math, Veronica is…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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The amount of time in seconds it takes for a swimmer to hear a single, hand-held, starting signal is given by the formula below, where (x,y) is the location of the starter (in meters), (0,p) is the location of the swimmer (in meters), and C is the air temperature (in degrees Celsius). Assume that the starter is located at the point (4,-2). Answer parts a and b below. t(x,y.p.C) = √²+(y-p)² 331.45+0.6C a. Calculate t(4, -2,30,20) and t(4, -2,20,20). Could the difference in time change the outcome of a race? t(4, -2,30,20) = (Round to five decimal places as needed.) Ay p Swimmer Starter (4,-2) P
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