Question

X=2+5t+7t^2 calculate magnitude of initial velocity

Answer 1

Answer:

Explanation:

dx/dt=0

0–5+12t=0

t=5/12 seconds

Acc.=12m/s2

V=0

V=u+at

0=u+12×5/12

U= -5m/s

once try this model and formula confirm you will get the answer