Question

a body is projected vertically upward. if its velocity after 2 s is 25 m per sec, find velocity of projection​

Answer 1

v = 25 m/s

u = ?

t = 2 s

g = -10 m/s (assume)

From 1 law of motion,

v = u + at

v = u - gt

25 = u - 10(2)

u = 45 m/s