When the particle moves along a straight line, its acceleration is a = 2-3T (SI). If t = 2S, the particle is located at x = 1m, v = 2m / s, find 1, the velocity of the particle; 2. The equation of motion of a particle

When the particle moves along a straight line, its acceleration is a = 2-3T (SI). If t = 2S, the particle is located at x = 1m, v = 2m / s, find 1, the velocity of the particle; 2. The equation of motion of a particle

A = 2-3tdv / dt = 2-3tv = 2t-1.5t ^ 2 + C if t = 2S, the particle v = 2m / s, substituting 2 = 2 * 2-1.5 * 4 + C C = 4V = 2t-1.5t ^ 2 + 4 ------ 1dx / dt = 2t-1.5t ^ 2 + 4x = C + 4T + T ^ 2-0.5t ^ 3 if t = 2S, the particle is located at x = 1m, 1 = C + 4 * 2 + 2 ^ 2-0.5 * 2 ^ 3 C = - 7x = 4T + T ^ 2-0.5t ^ 3