Q.
Two balls of the same mass are shot upwards one after another at an interval of 2 seconds, along the same vertical line with the same initial velocity of 39.2 m/s. They will collide at a height :
see full answer
Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!
Real Strategies. Real People. Real Success Stories - Just 1 call away
An Intiative by Sri Chaitanya
a
78.4 m.
b
44.1 m.
c
73.5 m.
d
58.5 m.
answer is C.
(Unlock A.I Detailed Solution for FREE)
Ready to Test Your Skills?
Check your Performance Today with our Free Mock Test used by Toppers!
Take Free Test
Detailed Solution
When they collide displacement will be same but time of travel is t and t - 2.h=Ut−12gt2=U(t−2)−12g(t−2)2Solving t = 5 sec.Substituting h = 73.5 m.
Watch 3-min video & get full concept clarity