Question

If S=980t-490t^2, the velocity at time t =2 is??

Answer 1

Explanation:

answer is above

follow me

Answer 2

S = 980 t - 490 t²

we have know that,

Velocity (v) = ds/dt .

So, v = dS/dt = 980 - 980 t

Now, Velocity at time “t = 2s” is

v = 980 - 980 × 2

=> v = 980 - 1960

=> v = - 980 m/s .

Here -ve sign indicate that body will change it's direction .

Hope it's helpful to you.

Please mark as Brainliest answer.