Question

Passage-1:
A shell fired such that it hits a target at a distance 'b' and having height 'h'
6. Minimum velocity of projection is
a) 2gh
b) 2g(b+h) c) g(b+h) d) g(b- h)

Answer 1

Answer:

A ( I think)

Explanation:

Let v be the initial speed of projection,

Ui+Ki=Uf+Kf. ( conservation of energy)

0+(m(v^2)/2)=mgh+0