Question

Dada funi horária s=10+6t +8t^2. Determine a velocidade final no instante 8s​

Answer 1

s= 10 +6t +8t^2.

ds/dt = 0 + 6.1 + 2.8t

v = 6 +16t

v = 6 +16.8

v = 6 + 128

v = 134 m/s