TS EAMCET · Physics · Mathematics in Physics
A ball is dropped from a height from rest. The ball travels in last . The total time taken by the ball to hit the ground is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
Given: Height of free fall of ball is H Distance covered by the ball is H2 in last 1.0 s. Now, displacement in the nth second sn=u+an-12 Here sn=H2, u=0 (since the ball is at rest initially) Thus, H2=gn-12 ...1 where n is the time taken to…
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