Question

Displacement from O of a particle moving along a straight line is given by x=t^2-4t

What is the distance after 4 seconds?
What’s the distance after 6 seconds

Answer 1

The distance after 4 seconds is 0 and the distance after 6 seconds is 12.

Step-by-step explanation:

To find the distance after 4 seconds, we need to substitute 4 into the equation x = t^2 - 4t:

x = (4)^2 - 4(4) = 16 - 16 = 0

Therefore, the distance after 4 seconds is 0.

To find the distance after 6 seconds, we need to substitute 6 into the equation:

x = (6)^2 - 4(6) = 36 - 24 = 12

Therefore, the distance after 6 seconds is 12.