[填空题]
Two vectors have len:8zvxm+fn2r-b/d kv m23n e km2-e(bn h(y l6j )dixccgth $ V_{1}=3.5 \mathrm{~km} $ and $ V_{2}=4.0 \mathrm{~km}$ . What are the maximum and minimum magnitudes of their vector sum?max = min =
参考答案: 空格1: 7.5±2%
空格2: 0.5±2%
本题详细解析: If the two vectors are in the same direc7rm t4 yb 87izxv47gaztion, the magnitude of their sum will be a maximum, and will be 7.5 km. If the two vectors are in the opposite direction, the magnitude of their sum will be a minimum, and will be 0.5 km. If the two vectors are oriented in any other configuration, the mag7y87v bxt 4gmraiz4z7 nitude of their sum will be between 0.5 km and 7.5 km.
