[دايخ200]

طيب ساعدوووووني في دا السؤال ...


The coordinate of a particle in meters is given by x(t) = 16t – 3 t3, where the time t is in
seconds. The particle is momentarily at rest at t= .. s

a)0.75 s
b) 1.3 s
c)5.3 s
d)7.3 s