tahjzionhogan8751 tahjzionhogan8751

04-04-2018
Physics

contestada

It takes 160 kj of work to accelerate a car from 24.0 m/s to 27.5 m/s. what is the car's mass?

Respuesta :

kiaratatiana7p6mdlk kiaratatiana7p6mdlk

08-04-2018

Work-Energy :W = 1/2 m ( Vf^2 -Vo^2 )
Vo = 24.0 m/s Initial speed
Vf = 27.5 m/s Final speed

W = 1/2 m ( Vf^2 -Vo^2 )
160 kj = 1/ 2 m ( 27.5^2 -24.0 ^2)
160kj = 4680 x m
convert kilo joules to jeoules 160000 j = 4689 xm
m = 160000 j/4689
m = 34.18 kg

Answer Link

Otras preguntas

click on ot plz gelp me tgx so much

PLEASE HELP! Explain your answer, idk what im doing.

How did the Egyptians view the setting sun? a. as the end of the day b. as the sun's death c. as a time of revival d. as the start of night

thx for ur helpness click the picture

Determine whether the lines are parallel,perpendicular,or neither 2x+4y=32 y=-1/2x+16

A graduated cylinder is filled 241.5 ML with water and a piece of granite is placed in the cylinder displacing the level 247.6 ML what is the volume of the gran

What is (jk)(x) when j(x)=-7x and k(x)=9-2x

Read the excerpt from chapter 6 of Animal Farm. It was about this time that the pigs suddenly moved into the farmhouse and took up their residence there. Again

I have no Idea what this is can someone help me? Which of these scenarios involve a reaction that is at equilibrium? The reaction is producing more products tha

Think about the different groups that were struggling to control land in North America. Remember what you’ve learned about their priorities and their goals.