Plz solve

Curvilinear Motion (Section 14) 81 1. An object moves according to the parametric equations: x =- t A. Find the object's velocity after 3 seconds Hint: Take the derivative of each with respect to time. Plug in the given time to get velocity in the horizontal and vertical directions. Then tangent and Pythagorean theorem. B. Find the object's acceleration in 3 seconds Remember: Acceleration requires another derivative 2. A projectile moves according to the equations given x =20-1212, y =-2t' +100. Find the objects acceleration in 3 seconds. 40 3. Using the given equations of motion, find the following: x = -, y =t' A. The object's velocity at t =2 seconds Remember: These are vectors so each answer should have two parts, magnitude and direction. Draw the components for direction and write the angle in standard form. B. The object's acceleration at t =3 seconds