Question

Koordinat suatu benda dinyatakan :
x(t) = -1,6t^3 + 2,1t^2 - 42

Tuliskan persamaan percepatannya!

Answer 1

A = dV/dt

V = dx/dt
V = d(-1,6t³ + 2,1t² - 42) / dt
V = - 4,8t² + 4,2t

a = d(-4,8t² + 4,2t) / dt
a = -9,6t + 4,2