Bullets are being fired vertically upwards from a gun with an initial speed of 20m/s at an interval of 1s. Find the number of bullets the 7th bullet will meet in its path.

Please solve it

using graphical approach as well...!!

Dear Rahul,

4 bullet while going upwards and 4 bullets while comming downwards

Best Of luck

Cracking IIT just got more exciting,It’s not just all about getting assistance from IITians, alongside Target Achievement and Rewards play an important role. ASKIITIANS has it all for you, wherein you get assistance only from IITians for your preparation and winexciting gifts by answering queries in the discussion forums. Reward points 5 + 15 for all those who upload their pic and download the ASKIITIANS Toolbar, just a simple click here to download the toolbar….

So start the brain storming…. become a leader with Elite Expert League ASKIITIANS

Thanks

Aman Bansal

Askiitian Expert

 is the answer 10

Time of bullet in air = 2u/g = 4 sec

Time to reach highest point = 2 sec

Since bullets are fired every sec, Bullet seven will meet Bullet no 3,4,5 AND 6 That makes 4 bullets(Bullet no. 1 and 2 would have come down by the time 7th is fired)

Now when bullet 7 is coming down it will again meet bullet 8,9,10 and 11

Hence 8 bullets in total

Hope u got that

Plz approve if it helped you