# Math Help - word problem...

1. ## word problem...

If you could just help me set this up, I think I can handle it from there...

If a ball is thrown into the air with a velocity of 51 ft/s, its height (in feet) after t seconds is given by y = 51t - 16t^2. Find the velocity when t = 2.

2. Originally Posted by ryan18
If you could just help me set this up, I think I can handle it from there...

If a ball is thrown into the air with a velocity of 51 ft/s, its height (in feet) after t seconds is given by y = 51t - 16t^2. Find the velocity when t = 2.
$v(2) = \lim_{t \to 2} \frac{y(t) - y(2)}{t-2}$