|
1. A car moves from `A` to `B` in `5.0` second as shown in the figure.
(a) What is the initial position, `x_i`, of this car?
(b) What is the final position, `x_f`, of this car?
(c) How many distance, `d`, this car moved?
(d) What is the displacement, `∆x`, of this car?
(e) What is the average speed of this car?
(f) What is the average velocity of this car?
1. A car moves from A to B in 5.0 second as shown in the figure.
(a) What is the initial position, x_i, of this car?
(b) What is the final position, x_f, of this car?
(c) How many distance, d, this car moved?
(d) What is the displacement, ∆x, of this car?
(e) What is the average speed of this car?
(f) What is the average velocity of this car?  `∆x = x_f - x_i`
`v = (∆x)/(∆t)`
(a)`x_i = 30\ m`
(b)`x_f = -10\ m`
(c)`d = 40\ m`
(d)`∆x = -40\ m`
(e)`v = 8.0 m//s`
(f)`v = -8.0 m//s`
Given:
`x_i = 30\ m`
`x_f = -10\ m`
`∆t = 5.0\ s`
Equation:
`∆x = x_f - x_i`
`v = (∆x)/(∆t)`
(a)
`x_i = 30\ m`
(b)
`x_f = -10\ m`
(c)
`d = 30\ m + 10\ m`
`d = 40\ m`
(d)
`∆x = x_f - x_i`
`∆x = -10\ m - 30\ m`
`∆x = -40\ m`
(e)
Speed `v= d/(∆t)`
`v = (40\ m)/ (5.0\ s)`
`v = 8.0 m//s`
(f)
Velocity `v = (∆x)/(∆t)`
`v = (-40\ m)/ (5.0\ s)`
`v = -8.0 m//s` |