Kinematics Question 184

Question: An object it’s projected upwards with a velocity of 100 $ m/s $ . It will strike the ground after (approximately) [NCERT 1981; AFMC 1995]

Options:

A) 10 sec

B) 20 sec

C) 15 sec

D) 5 sec

Show Answer

Answer:

Correct Answer: B

Solution:

Time of flight $ =\frac{2u}{g}=\frac{2\times 100}{10}=20\ sec $



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