Question

34. A balloon starts rising from ground from rest with an
upward acceleration 2 m/s2. Just after 1 s, a stone is
dropped from it. The time taken by stone to strike the
ground is nearly
(1) 0.3s
(2) 0.7 s
(3) 1s
(4) 1.4s​

Answer 1

Answer:

If upward acceleration is 2m/s2

It means at 1s, it's 2m High

Our Gravity pulls at acceleration of 9.8m/s2

It means it pulls 9.8m in 1s

Time Taken = 2/9.8 = 0.3s (nearly)

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