A rocket moves straight upward with zero initial velocity and with an acceleration 20 {m} \/ {s}^2. It runs out of fuel and stops accelerating at the end of 5^{\text{th }} {\sec}. It reaches a maximum height and falls back to the earth. The speed when it hits the ground is ( Take g=10 {m} \/ {s}^2)

Correct Answer is : 50√6m∕s

TS EAMCET 19-July-2022 Shift 2 Solved Paper

Section: Physics

Question : 83 of 160

Marks: +1, -0

A rocket moves straight upward with zero initial velocity and with an acceleration 20m∕s2. It runs out of fuel and stops accelerating at the end of 5‌th ‌sec. It reaches a maximum height and falls back to the earth. The speed when it hits the ground is ( Take g=10m∕s2)

100√2m∕s
150√3m∕s
50√6m∕s
75m∕s

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