If a car can go from 0 to 60 mi/hr in 8.0 seconds, what would be its final speed after 5.0 seconds if its starting speed were 50 mi/hr?

Question

01-05-2014
Physics

Answered

If a car can go from 0 to 60 mi/hr in 8.0 seconds, what would be its final speed after 5.0 seconds if its starting speed were 50 mi/hr?

Answer :

Other Questions

Why do governments provide some goods and services in market economies? They provide politicians with better jobs. Markets cannot operate without some governmen

which of these statements accurately describes Joseph Stalin? He was less brutal than previous Russian leaders. He overthrew Lenin to become leader of the USS

Radioisotopes tell scientists that Earth is how old? A. 65 million years B. 500 million years C. 4.5 billion years D. 13.4 billion years

use Vietcong in a sentence

Which word or words in the greeting should be capitalized? greetings to my family, Choose all answers that are correct. A. To B. Family C. My D. Greetings

the hare who would not be king summary

Support for the Mexican-American War was most closely connected with support for which of these ideas? Manifest Destiny Transcendentalist Movement Great Awakeni

MC)Which of these aspects was common to the First and Second Industrial Revolutions? use of the assembly line use of electricity use of water power use of child

The glacier, a block of ice as long as a football field, moved slowly across the frozen tundra. Which phrase is an appositive in the sentence?

A bird is flying with a speed of 18.0 m/s over water when it accidentally drops a 2.00 kg fish. if the altitude of the bird is 5.40 m and friction is disregarde

Аноним Аноним · Answer 1 · 2014-05-02T20:35:00-04:00

[tex]v_1=60\ \frac{mi}{h}\\\\t_1=8.0\ s=\frac{8}{3600}\ h=\frac{1}{450}\ h\\--------------\\a=\frac{v}{t}\\\\a=\frac{60}{\frac{1}{450}}\ \frac{mi}{h^2}=27000\ \frac{mi}{h^2}\\--------------\\v_o=50\ \frac{mi}{h}\\\\t=5.0\ s=\frac{5}{3600}\ h=\frac{1}{720}\ h\\--------------[/tex]

[tex]v=v_o+at\\\\\\v=50\ \frac{mi}{h}+27000\ \frac{mi}{h^2}\cdot\frac{1}{720}\ h=50\ \frac{mi}{h}+37.5\ \frac{mi}{h}=87.5\ \frac{mi}{h}\leftarrow Answer[/tex]

kate200468 kate200468 · Answer 2 · 2014-05-02T21:42:15-04:00

kate200468 kate200468

02-05-2014

[tex]a= \frac{V}{t} \ \ \ \Rightarrow\ \ a= \frac{60\ [mi/hr]}{8\ [s]} \\ \\the\ final\ speed\ after\ 5.0\ seconds\\ \\V=50\ [mi/hr]+5\ [s]\ \cdot \frac{60\ [mi/hr]}{8\ [s]}=50\ [mi/hr] + \frac{5}{8} \cdot 60\ [mi/hr]=\\ \\=50\ [mi/hr]+37.5\ [mi/hr]=87.5\ [mi/hr][/tex]

Answer Link