- #1
ACSC
- 7
- 0
1. Homework Statement
The position of a particle moving along the x-axis varies in time according to the expression x = 5t^2, where x is in meters and t is in seconds. Evaluate its position at the following times.
(a) t = 3.00 s
x = ? m
(b) t = 3.00 s + Δt
xf(final x) = ? m
(c) Evaluate the limit of Δx/Δt as Δt approaches zero to find the velocity at t = 3.00 s.
v = ? m/s
Maybe lim x->0 ∫Δx/Δt
(a) x = 45m, got it.
(b) I don't understand what it's asking me.
(c) lim t-> 0 ∫ 5x^2 Δx/Δt at t=3
= lim t-> 0 [10t]
I don't know what to do from here since it asks me to find velocity when t->0 at when t=3 at the same time.
The position of a particle moving along the x-axis varies in time according to the expression x = 5t^2, where x is in meters and t is in seconds. Evaluate its position at the following times.
(a) t = 3.00 s
x = ? m
(b) t = 3.00 s + Δt
xf(final x) = ? m
(c) Evaluate the limit of Δx/Δt as Δt approaches zero to find the velocity at t = 3.00 s.
v = ? m/s
Homework Equations
Maybe lim x->0 ∫Δx/Δt
The Attempt at a Solution
(a) x = 45m, got it.
(b) I don't understand what it's asking me.
(c) lim t-> 0 ∫ 5x^2 Δx/Δt at t=3
= lim t-> 0 [10t]
I don't know what to do from here since it asks me to find velocity when t->0 at when t=3 at the same time.