From the top of a tower of height 50m, a ball is thrown vertically upwards with a certain velocity. It hits the ground 10 s after it is thrown up. How much time does it take to cover a distance 𝐴𝐵 where 𝐴 and 𝐵 are two points 20m and 40m below the edge of the tower? (g = 10ms −2 )

April 14, 2022

by Ezee_Notes

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Physics Problems

Question : From the top of a tower of height 50m, a ball is thrown vertically upwards with a certain velocity. It hits the ground 10 s after it is thrown up. How much time does it take to cover a distance 𝐴𝐵 where 𝐴 and 𝐵 are two points 20m and 40m below the edge of the tower? (g = 10ms −2 )

(A) 2.0 s

(B) 1.0 s

(D) 0.4 s

Answer : option (D)

Solution :

From the top of a tower of height 50m, a ball is thrown vertically upwards with a certain velocity. It hits the ground 10 s after it is thrown up. How much time does it take to cover a distance 𝐴𝐵 where 𝐴 and 𝐵 are two points 20m and 40m below the edge of the tower? (g = 10ms −2 )