If an object is thrown vertically up with the initial speed u from the ground, then the time taken by the object to return back to ground is
A. u2/2g
B. u2/g
C. u/2g
D. 2u/g
Answer:D
If an object is thrown vertically up with the initial speed u from the ground, then the time taken by the object to return back to ground is
A. u2/2g B. u2/g C. u/2g D. 2u/g