You are returning a tennis ball that yourfive-year-old neighbor has accidentally

Question

You are returning a tennis ball that yourfive-year-old neighbor has accidentally thrown into your yard, butyou need to throw it over a 3.0 m fence. You want to throw itso that it barely clears the fence. You are standing 0.50 maway from the fence and throw underhanded, releasing the ball at aheight of 1.0 m. State the initial velocity vector you woulduse to accomplish this.
(, )m/s (, )m/s You are returning a tennis ball that yourfive-year-old neighbor has accidentally thrown into your yard, butyou need to throw it over a 3.0 m fence. You want to throw itso that it barely clears the fence. You are standing 0.50 maway from the fence and throw underhanded, releasing the ball at aheight of 1.0 m. State the initial velocity vector you woulduse to accomplish this.
(, )m/s

Explanation / Answer

Range R=u2sin2/g 1=u2sin2/9.8 usin*ucos=4.9 vx*vy=4.9
Hmax=u2sin2/2g 2=vy2/2*9.8 vy2=39.2 vy=6.2609m/s vx=4.9/6.2609 vx=0.782624m/s v=(0.78262i+6.2609j)m/s Hence we get by it.

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