Q2) the coordinates of a bird flying in the xy-plane are given by () = 2.4 + (3 − 1.2 2) (a) Calculate the velocity and acceleration vectors of the bird as functions of time.
(b) Calculate the magnitude and direction of the bird’s velocity and acceleration at = 2.

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig

Aplayground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about a vertical axle through its center. a child applies a 26.0 n force tangentially to the edge of the merry-go-round for 15.0 seconds. if the merry-go-round is initially at rest, how much work did the child do on the merry-go-round?

An athlete is holding 24 lb of weights at a height of 6 inches above the stack as shown. to lower the weights, she applies a constant force of 5 lb to the handle. determine the velocity of the weights immediately before they hit the stack.