The figure below shows a homogeneous bar of mass M and length L,with one end attached to a hinge on a wall and the other end supported by a string.问题是如何计算墙对杆的力的大小及方向?我有发图,你们看不到吗?

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ThefigurebelowshowsahomogeneousbarofmassMandlengthL,withoneendattachedtoahingeonawallandtheotherends

The figure below shows a homogeneous bar of mass M and length L,with one end attached to a hinge on a wall and the other end supported by a string.问题是如何计算墙对杆的力的大小及方向?我有发图,你们看不到吗?
The figure below shows a homogeneous bar of mass M and length L,with one end attached to a hinge on a wall and the other end supported by a string.
问题是如何计算墙对杆的力的大小及方向?
我有发图,你们看不到吗?

The figure below shows a homogeneous bar of mass M and length L,with one end attached to a hinge on a wall and the other end supported by a string.问题是如何计算墙对杆的力的大小及方向?我有发图,你们看不到吗?
绳子拉力是重力的一半,竖直向上,所以墙对杆的力为重力的一半,竖直向上
满足平动平衡和转动平衡的条件

你直接给我图看吧,题我能读懂,但是没看见图,不是很清楚位置

你好,图中杆水平方向受合力F为0,则墙对杆的力 F'与T关于过杆重心的竖直线对称(绳不竖直时成立),这个力跟杆与墙的夹角和θ有关

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