an archer in the battlements of a castle is12.0 meters above the ground when she

Question

an archer in the battlements of a castle is12.0 meters above the ground when she launches an arrow with aninitial speed of 68.0 m/s at an angle 25.0 degree below thehorizontal (as shown in the sketch below, which is not toscale). how long is the arrow in the air (inseconds)? an archer in the battlements of a castle is12.0 meters above the ground when she launches an arrow with aninitial speed of 68.0 m/s at an angle 25.0 degree below thehorizontal (as shown in the sketch below, which is not toscale). how long is the arrow in the air (inseconds)?

Explanation / Answer

y=VoSint-1/2gt2 , so0-12m=68m/s(Sin25)t-1/2(9.8)t2 then we solve this tofind that t=6.256 seconds

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