Question

大学物理题。一物体沿直线运动，运动方程为

具体题目，如图所示，求解

Answer 1

1.
(1)V=Aωcosωt
(2)V=Aω√(1-(y/A)^2) ......................(2k-1/2)π<=ωt<(2k+1/2)π,k=0,±1,±2,...
V=-Aω√(1-(y/A)^2) ......................(2k+1/2)π<=ωt<(2k+3/2)π,k=0,±1,±2,...
2.
(1)V=-Aωsinωt
(2)V=-Aω√(1-(y/A)^2) ......................(2k-1/2)π<=ωt<(2k+1/2)π,k=0,±1,±2,...
V=Aω√(1-(y/A)^2) ......................(2k+1/2)π<=ωt<(2k+3/2)π,k=0,±1,±2,...