A particle moving along the x-axis?

0 ⤊

A particle moving along the x-axis?

so that at time t=3, 6inches to the left of the origin.
V(t) = 9t^2 - 6t
AT What time will the particle be at rest?

2007-09-13 05:07:50 · 2 answers · asked by PETER PAN 2 in Science & Mathematics ➔ Mathematics

2 answers

You have a velocity equation.

Make zero the left side. Solve for t using the quadratic equation.

2007-09-13 05:12:45 · answer #1 · answered by Brian L 7 · 0⤊ 0⤋

V(t) = 9t^2 - 6t and V will be zero when the particle is at rest.

9t^2 = 6t

2 = 3t

t = 2/3

The first relation of position with respect to time is not used in the second equation. Check your problem.

2007-09-13 05:16:37 · answer #2 · answered by Swamy 7 · 0⤊ 0⤋