Question

A body moves with a uniform acceleration of 3 m/s2.After 10 seconds, it's velocity becomes 50m/s.Find the initial velocity of the object.

Give answer quickly. Please.

Answer 1

a = 3 m/s^2

v = 50 m/s

t = 10 s

u = ?

v = u + at
u = v - at
u = 50 - (3×10)
= 50 - 30
= 20 m/s.