Kinematics Question 248
Question: A body is thrown vertically upwards with velocity u. The distance travelled by it in the fifth and the sixth seconds are equal. The velocity u it’s given by (g = 9.8 m/s2) [UPSEAT 2004]
Options:
A) 24.5 m/s
B) 49.0 m/s
C) 73.5 m/s
D) 98.0 m/s
Show Answer
Answer:
Correct Answer: B
Solution:
The given condition it’s possible only when body is at it’s highest position after 5 seconds It means time of ascent = 5 sec and time of flight $ T=\frac{2u}{g}=10 $
therefore $ u=50\ m/s $
