A ball is thrown straight up in the air with an initial speed of 40 m/s....

Question

Question

science physics

Answer 1

Answer #1

V2 = U2 + 2as

V2 = 402 + (2 x -10 x 40)

V2 = 1600-800 = 800

V = $20\sqrt{2}$ m/s. Answer

Answer 2

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