# 1009 Initial velocity of the second ball | Rectilinear Translation

### hi.po good day.paano po

hi.po good day.paano po naging 9.47s sa time? thank you in advance po sa sasagot

### 9.47 was found by quadratic

9.47 was found by quadratic formula, I believe you get that, I think what you mean is, why use 9.47 and not 2.54 sec for t. Using 2.54 sec for t is invalid because the second ball was shot 4 seconds after the first ball.

### thank you po. na checked ko

thank you po. na checked ko na po using shft.solve

Why use 9.47s?

### Using 2.54 sec for t is

Using 2.54 sec for t is invalid because the second ball was shot 4 seconds after the first ball.

### Hello po! Paano po naging t1

Hello po! Paano po naging t1 - 4 ang t2 and not t2 = t1 + 4? Dito po ako palaging nagkakamali. Please enlighten me po. Thank you po.

### consider niyo po as t yung 9

consider niyo po as t yung 9.46 then yun yung time ng ball 1. then t1=4s, and in order to solve for the initial velocity of ball 2, kailangan mo yung 22 which is ma-eestablish sa relationship na t=t1+t2. that means to say, t2=t-t1=t-4