When the acceleration of an object moving in a uniform straight line is 3 M / s and reaches 15 m / s after 4 S, / degree, the initial velocity of the object will decrease
vt=v0+at
15=v0+3*4
v0=3 m/s.
A could also be - 3
15=v0-3*4
v0=27 m/s
The initial velocity of the object is 3 M / s or 27 m / s
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