I don’t understand the last line of vb how they did the factoring method of v0 I don’t get what happened inside the radical Exercise session #02 - 10/03/2021-3/10/2021A tennis player launches the tennisball vertically downward with aninitial speed v₁ = -√98 and aninitial height y₂ = 1.5m. The ball.hits the ground and bounces back witha perfectly elastic collision. Find thetime it takes for the ball to returnto the initial height yo.For 0≤t≤tbv(t) = V₁ - gty(t) = y + xt-gt²0 = y₁ + v₁ t₁ - £gt₂²to = ± √ 4 24+24=2,V₁ = V₁- gtb = V₁² √ 1+ 2409

As mentioned, I will focus on the piece of info specifically asked by the .A tennis player launches…

Answered: Exercise session #02 - 10/03/2021 -…

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Please explain and give the correct answer
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