[(elaf)]

the coordinate of a particle in meters is given
by X(t) = 16t-3t^3 ,
where the time t is in seconds. The particle is momentarily at rest at t =


A) 0.75 s
B) 1.3 s
C) 5.3s
D) 7.3 s

ابغى اعررف الجواب مع الشرح بلييييز ؟! والله يوفق اللي يساعدني