60. Dependence body path traversed by the time given by the equation s = A - Bt + Ct2 + Dt3 (A = 6, m, B = 3 m / s, C = 2 m / s2, D = 1 m / s3) Determine for body a time interval from t1 = 1 sec to t2 = 4: 1) the average speed; 2) the average acceleration.

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)