Please help me

v=48t^2

And what is to be done ?

Solve

solve for what ?

already solved for v

for t ....
t = ±√(v/48)

Of course! I'd be happy to help you. It looks like you have an equation: v = 48t^2. This equation relates the velocity (v) of an object to the time (t) it has been moving.

If you have a specific question about this equation, please let me know and I'll do my best to assist you.