1) An egg is thrown horizontally off the roof SL. which is 20meter high with ini

Question

1) An egg is thrown horizontally off the roof SL. which is 20meter high with initail velocity of 6.5m/s. how far from the base of the building does the egg lang.

2) A car drives horizontally off a cliff 80meter high. the car lands 100meter from the base off the cliff.how fast was the car traveling when it left the cliff

3) A cannonball is fired from the ground at the angle of 60 degree with an initial velocity of 200m/s/ what is thee maximum height reached by the cannonball?how far will the cannonball travel retunning to the ground

Explanation / Answer

1) (20*2/9.8)2.02031 s==>vo=vox=6.5 m/s==>x=vox*t=6.5 m/s*2.0203113.132 m

2) (80*2/9.8)4.04061 s==>x=vox*t==>100 m/4.04061 s24.75 m/s

3) vo=200 m/s==>vox=vo*cos(60º)=100 m/s==>voy=vo*sin(60º)173.21 m/s

voy²/(2*g)=173.21² m/s/(2*9.8)1530.6 m=max ht==>max ht t=

voy/g=173.21 m/s/9.8 m/s²17.674 s*2=35.35 s total flight time

x=vox*t=100 m/s*35.35 s3534.8 m distance on grd

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