Answered

Discover a world of knowledge at Westonci.ca, where experts and enthusiasts come together to answer your questions. Our Q&A platform provides quick and trustworthy answers to your questions from experienced professionals in different areas of expertise. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals.

Một vật dao động điều hòa theo phương trình x=4cos(2pit-2pi/3) xác định trạng thái dao động tại thời điểm ban đầu ba và trạng thái dao động tại thời điểm tê bằng 2,75s

Sagot :

Answer:

Explanation:

y = Acos(ωt + φ)

ω = 2π

φ = -2π/3

A = 4

v = -ωAsin(ωt + φ)

a = -ω²Acos(ωt + φ)

y(0) = 4cos(-2π/3) = -2 m

v(0) = -2π(4)sin(-2π/3) = -21.77 m/s

a(0) = -(2π)²(4)cos(-2π/3) = 78.96 m/s²

y(2,75) = 4cos(2π(2,75) - 2π/3) = -3.46 m

v(2,75) = -2π(4)sin(2π(2,75) - 2π/3) = -12.57 m/s

a(2,75) = -(2π)²(4)cos(2π(2,75) - 2π/3) = 136.76m/s²

Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. We're dedicated to helping you find the answers you need at Westonci.ca. Don't hesitate to return for more.