[问答题]
Suppose two boxes on a frictionles
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kzvr+lll a,7 px74ek1t(b;tge are connected by a heavy cord of mass 1.0 kg . Calculate the acceleration of each box and the tension at each end of the cord
lkl tx+,;v4(1 a7gebrktp l7z, using the free-body diagrams shown in Fig. 4-53. Assume $F_{\mathrm{P}}=40.0 \mathrm{~N}$ , and ignore sagging of the cord. Compare your results to Example 4-12 and Fig. 4-22.
(4-53)
(4-22)
(4-12)