English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

A car traveling at 6.5 m/s accelerates at the rate of +0.87 m/s2 for an interval of 3.6 s. Find vf.

answer in m/s.

don't i use this formula: final velocity=initial velocity + (acceleration * time interval)?

2006-09-18 16:04:01 · 4 answers · asked by tingerpoo 2 in Science & Mathematics Mathematics

4 answers

Vf = 6.5 m/s + (0.87 * 3.6)

Vf = 6.5 m/s+(3.132)

Vf = 9.632 M/s2 My physics is a little rusty but I'm sure that's equation and how it's figured.

2006-09-18 16:08:12 · answer #1 · answered by Eric 2 · 1 1

Yes, just use that formula.

vi = 6.5 m/s, this is the speed you are originally going at (initial velocity).
vf = final velocity, this is what you're looking for.
a = 0.87 m/(s^2) your acceleration
t = 3.6 seconds, how long you're accelerating

vf = vi + at
vf = (6.5 m/s) + (0.87 m/s^2)(3.6s)
vf = 9.632 m/s

2006-09-18 23:34:54 · answer #2 · answered by Dumblydore 3 · 0 0

The first answer is correct.

2006-09-18 23:20:01 · answer #3 · answered by عبد الله (ドラゴン) 5 · 0 0

s=ut+1/2at^2
=6.5(3.6)+1/2(0.87)(3.6)^2
=23.4+5.64=29.04m

2006-09-18 23:10:04 · answer #4 · answered by raj 7 · 0 2

fedest.com, questions and answers