Question : If a freely falling body travels in the last second a distance equal to the distance travelled by it in the first three second, the time of the travel is
(A) 6 𝑠𝑒𝑐
(B) 5 𝑠𝑒𝑐
(C) 4 𝑠𝑒𝑐
(D) 3 𝑠𝑒𝑐
Answer : option (B)
Solution :
If a freely falling body travels in the last second a distance equal to the distance travelled by it in the first three second, the time of the travel is
with
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