Calculate r. (t). r2(t)] and [r(t) x r2(t)] first by differentiating ] ) e fru(e) x r2(t)) = r2(e) x d [t] rit dt' dt th
Posted: Tue May 10, 2022 11:56 am
Calculate r. (t). r2(t)] and [r(t) x r2(t)] first by differentiating ] ) e fru(e) x r2(t)) = r2(e) x d [t] rit dt' dt the product directly and then by applying the formulas d dr2 dri [ri(t) ยท r2(t)] = ri(t). + r2(t) and dt dt dt d dr2 dri [rit] rit + x r2(t). dt dt dt ri(t) = cos(t)i + sin(t)j + 6tk, = r2(t) = 5i + tk = o ] = = [ri(t).rz(t)] dt