1. The distance in meters travelled in time t seconds by a point moving in a straight line is given by the formula 5(3) =2r'-51+2. Find the velocity and the acceleration at the end of 4.00 seconds. 2. The equation of the elastic curve [deection]: for a simply supported beam under uniform load is given by the following formula 3}: ZXIITS 1(216-1012 +13) In the above equation, x is the distance from the left support of the beam to any point on the beam, and y is the deflection, both in meters. Find the rate of change of deection (i.e., the slope] of the elastic curve at x = 1.50m