gc physics textbook chapter 3 problems (id: 62ce9c1cd)

本题目来源于试卷: gc physics textbook chapter 3 problems，类别为 通用国际物理

[填空题]
A delivery truck travels 18 blocks north, 10 blo) zx:*mr7m,lb fqy x.mmg7q f8s nc1b7rtn2)xcks east, 5qo.r1t c.q1:s pmwylk7d gy) and 16 blocks south. What is its final displacement from the origin? Assume :1y.ml1syq7 . odq)p cgwk5trthe blocks are equal length.    blocks

参考答案: 10±2%


本题详细解析:
The truck has a displa*el h :)aks26 ,kenrwxcement of  18+(-16)=2  blocks north and 10 blocks east2lxw he :kek6ar*sn) ,. The resultant has a magnitude of $ \sqrt{2^{2}+10^{2}}=10 $ blocks and a direction of  $\tan ^{-1} 2 / 10=11^{\circ}$  north of east.

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