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> 质量为10kg的物体放在水平桌面上以16m/s的初速度向右运动, 物体受到一个水平向右的拉力F=50N和水平向左的阻力f=30N,（g取10m/s 2.）求: (1)物体滑行过程中的加速度大小和方向? (2)物体滑行至2s末的速度多大? (3)若撤去水平向右的力F， 2s内物体的位移多少?

问题：

发布时间：2024-09-10

质量为10kg的物体放在水平桌面上以16m/s的初速度向右运动, 物体受到一个水平向右的拉力F=50N和水平向左的阻力f=30N,（g取10m/s ².）求:
(1)物体滑行过程中的加速度大小和方向?
(2)物体滑行至2s末的速度多大?
(3)若撤去水平向右的力F， 2s内物体的位移多少?

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