一輛警車靜止不動,一輛以96 km h-1勻速運動的快車經(jīng)過,警車立即追趕.加速度不變經(jīng)過了750 m后追上了快速行駛的車輛.
計算警車追上這輛車所需時間（s）.
96 km h-1=80/3 m·s-1
t=750/(80/3)=28.125 s
A police car at rest,passed by a speeder travelling at a constant 96 km h-1,takes off in hot pursuit.The police officer
A police car at rest,passed by a speeder travelling at a constant 96 km h-1,takes off in hot pursuit.The police officer catches up to the speeder in 750 m,maintaining a constant acceleration.
Calculate the length of time it takes (in seconds) for the police officer to overtake the speeder.
Calculate the length of time it takes (in seconds) for the police officer to overtake the speeder.
英語人氣：232 ℃時間：2020-02-06 10:24:57
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