If an athlete throws a shot-put at an angle of 45° to the horizontal with an initial speed of 43 ft/s . The shot-put leaves his hand 7 feet above the ground. Write parametric equations for the trajectory of the shot-put:use g = 32 ft/s² . x(t)=v, cos(a)t y(t)=(initial height)+v, sin(æ)t-? 2 and

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Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.