Two tall buildings are standing in front of each other at a straight separations of 10 m one of them is taller than the other by 9 m. A man is running on the roof top of taller at a speed of 9 m/s horizontally and jumps as such in the hope that he will land on the roof of the building with lower height. Find will be able to land ?

Options

A. Yes
B. No
C. Just on head of edge
D. Falls in the middle of street.

Answer

a

Explanation

Here let t be the time for the man to jump from `B_1` to `B_2` . Then if u=9 ms and vertical initial velocity of man v=0

We have x=ut and y`=(1)/(2) g t^(2)`
`9=(1)/(2)xx10xxt^(2) :. T=sqrt(9//15)`
`x=9xxsqrt(9//5)=(27)/(sqrt(5))=(27)/(2.236)`
=12.075
As the disatnce between two bulidigs is 10 m the man will land on `B_2`