A body dropped from a height h with an initial speed zero, strikes the ground with a velocity $3\text{\hspace{0.17em}}km/h$. Another body of same mass is dropped from the same height h with an initial speed $-{u}^{\text{'}}=4km/h$. Find the final velocity of second body with which it strikes the ground

(1) 3 km/h

(2) 4 km/h

(3) 5 km/h

(4) 12 km/h

Concept Videos :-

#26-Equations-for-Uniform-Acceleration
#27-Equations for Uniform Acceleration 28Calculus Method29
#28-Sign Convention
#29-Solved Examples 16
#31-Solved-Examples-18
#32-Solved Examples 19
#33-Solved Examples 20
#34-Solved-Examples-21
#35 Solved Examples 22
#30-Solved Examples 17

Concept Questions :-

Uniformly accelerated motion
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