a)Find the equation for the Velocity of a particle that trav
a)Find the equation for the Velocity of a particle that travels along x-axis governed by the position function: s(t)=t2-3t-10 b)What is the starting position for the particle? c)In what direction is the paticle traveling at t=1 sec? d)At what time(s) does the particle change direction 难道就没有一个人会吗?
a.2t-3 take derivative of s(t); b.(0,-10)?plug t=0 into the function; c.v=1-3-10=-12,towards negative infinity; d.t=1.5,when speed reaches 0 the partical reaches its maximum travel displlacement,hence set v=2t-3=0 ==> t = 1.5 Let me know if it workd out...Are you sure this is math not physics?