1. The problem statement, all variables and given/known data A frictionless plane is 11.4 m long and inclined at 39.4◦. A sled starts at the bottom with an initial speed of 4.46 m/s up the incline. When it reaches the point at which it momentarily stops, a second sled is released from the top of this incline with an initial speed vi. Both sleds reach the bottom of the incline at the same moment.The acceleration of gravity is 9.8 m/s Find the initial speed of the second sled. Answer in units of m/s 2. Relevant equations x = (1/2) * a * t² + v0 * t 3. The attempt at a solution t = 4.46/6.22 t = .717 So basically all I did was plug and chug... 11.4 = .5 * 9.8 * sin39.4 * .717^2 + v0 * .717 12.998 = v0 * .717 v0 = 18.129 Some reason I'm not getting the correct answer. Anyone want to tell me what i'm doing wrong? Thanks.