[Obama08]

بسم الله الرحمن الرحيم

v=dR/dt = -b@sin@t i +b@cos@t j +c k
v^2 = (-b@sin@t)^2 + (b@cos@t)^2 + c^2
v^2 = b^2@^2+ c^2
v = Square Root (b^2@^2+ c^2 ) = constant

a= dv/dt = -b@^2 cos@t i + b@^2sin@t j

القيمة المطلقة لتسارع = Square Root (b^2@^4 +b^2@^4)

= Square Root(2)* b@^2

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