搜搜做题作业网注:有点英语基础的进During a balloon race,one of the balloons drifts f
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注:有点英语基础的进
During a balloon race,one of the balloons drifts for 5km on a bearing 070°.The wind changes,and the balloon in blown another 6km on a bearing 100°,before it bursts.
QUSETION:
a) Make a scale drawing of its flight.
b) Measure the distance(correct 0.1km) and bearing(to the nearest degree) from where it starts to where it bursts.
回答希望能翻译给写上去!Thanks lot!
During a balloon race,one of the balloons drifts for 5km on a bearing 070°.The wind changes,and the balloon in blown another 6km on a bearing 100°,before it bursts.
QUSETION:
a) Make a scale drawing of its flight.
b) Measure the distance(correct 0.1km) and bearing(to the nearest degree) from where it starts to where it bursts.
回答希望能翻译给写上去!Thanks lot!
先定好你的坐标.从原点开始,往70度方向飘5公里,再往100度方向飘6公里.
要求：1.按比例画飞行路线图.
2.求终点和原点的距离和角度.
第一段在X方向飞了5*cos(70),Y方向飞了5*sin(70).
第一段在X方向飞了6*cos(110),Y方向飞了6*sin(110).
相加得总X方向飞行距离和Y方向飞行距离,勾股定理得终点和原点距离.用arc tan得角度.
要求：1.按比例画飞行路线图.
2.求终点和原点的距离和角度.
第一段在X方向飞了5*cos(70),Y方向飞了5*sin(70).
第一段在X方向飞了6*cos(110),Y方向飞了6*sin(110).
相加得总X方向飞行距离和Y方向飞行距离,勾股定理得终点和原点距离.用arc tan得角度.
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