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A projectile is launched from level ground at an angle of 300 to the horizontal. If the magnitude of the launch velocity is 30 m/s, calculate the time rate of change irn speed () and the radius of curvature (p) when: a) t-1 seconds b) The projectile reaches its maximum height c) t2 seconds 2) Vo For each part, start with a sketch of the particle, the velocity and acceleration vectors, and the x-y coordinates. Next, overlay the n-t coordinates (Not Shown) with en and êt labels. This will help you see angles and how to project vectors to the n-t directions. a) (example of how to start each part) 17

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