Please solve part A and part B! Part A Constants What is the height of the shelf

Question

Please solve part A and part B!

Part A Constants What is the height of the shelf above the point where the quarter leaves your hand? In a carnival booth, you win a stu a quarter into a small dish. The dish is on a shelf above the point where the quarter leaves your hand and is a horizontal distance of 3 m from this point (the figure (Figure 1)). If you toss the coin with a velocity of 5.42 m/s at an angle of 39 above the horizontal, the coin lands in the dish. You can ignore air resistance ffed giraffe if you toss H0.014 In SubmitPrev ious Answers Request Answer Incorrect, Try Again: 2 attempts remaining Part B What is the vertical component of the velocity of the quarter just before it lands in the dish? Figure 1 of 1 0 m/S Submit Request Answer Provide Feedback Nex

Explanation / Answer

A) horizontal distance x(t) = v0cos39*t = 3 m

5.42*cos39*t = 3

t = 0.712 sec

vertical position y(t) = v0sin39*t-1/2*9.8*t^2 = 5.42sin39*0.712-4.9*0.712^2

y(t) = 2.428-2.482 = -0.054 m

b) vy = v0sin39-9.8*t = 5.42sin39-9.8*0.712 = 3.41-6.98 = -3.57 m/s

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