Укажите проекцию силы F на ось OZ:<img src="/close/store/examRes/%7B7258FD1D-A5A7-488E-9EB9-776A6108E93C%7D/f.png" /><img src="/close/store/examRes/%7B7258FD1D-A5A7-488E-9EB9-776A6108E93C%7D/%D0%A1%D0%BD%D0%B8%D0%BC%D0%BE%D0%BA%20%D1%8D%D0%BA%D1%80%D0%B0%D0%BD%D0%B0%20%28175%29.png" /><img src="/close/store/examRes/%7B7258FD1D-A5A7-488E-9EB9-776A6108E93C%7D/%D0%A1%D0%BD%D0%B8%D0%BC%D0%BE%D0%BA%20%D1%8D%D0%BA%D1%80%D0%B0%D0%BD%D0%B0%20%28174%29.png" /><img src="/close/store/examRes/%7B7258FD1D-A5A7-488E-9EB9-776A6108E93C%7D/%D0%A1%D0%BD%D0%B8%D0%BC%D0%BE%D0%BA%20%D1%8D%D0%BA%D1%80%D0%B0%D0%BD%D0%B0%20%28173%29.png" /> <img src="/img/f1/d7432a9644624cdacf9ceddd4b.png" />, <img src="/img/89/c2e0ad00c81790e8142c461241.png" />, <img src="/img/c8/e449dca2755ec07e27a5027b50.png" />