Question

if x=2t^2 - 4t, find speed at t=1 sec​

Answer 1

Answer:

speed is 4 or v=4

Explanation:

according to the question,

if x=2t^2 - 4t, find speed at t=1 sec

x=2t^2 - 4t

=>a=4t-4 (by differentiate x we get acceleration (a))

=>v=4 (by differentiate a we get velocity (v))