dndnnsnsnvvvvv dndnnsnsnvvvvv
  • 18-02-2022
  • Physics
contestada

What is the new velocity of an 1140 kg car that was traveling at 13.6 m/s and slams on the brakes losing 50000 of energy?

Respuesta :

thishigopal
thishigopal thishigopal
  • 18-02-2022

Answer:

9.86m/s

Explanation:

let's get to the formula

kinetic energy = 1/2*m*v^2= .5*1140*(13.6)^2=105427.2 j

it looses 50k j of energy. so new energy = 105427.2-50000 = 554227.2

again use the formula for k.e

ans = 9.86 m/s

Answer Link

Otras preguntas

Write the equation of line in slope-intercept form
Pigment and chlorophyll in the same sentence
The sequence < un > is defined by the recurrence Un+1 = 3Un+1\5Un+3 initial condition of u1 = 1: Need to show un in terms of Fibonacci / Lucas numbers
Can someone please help me with number 8 please
A population of mollusks has lived in a relatively stable environment and shown no great change in many, many years. They live, die, and get fossilized every fe
Fine the two consecutive whole numbers the square root is between: √(26) & √(60)
The motion of a car on a position-time graph is represented with a horizontal line. What does this indicate about the car’s motion?
What type of plant is the malva assurgentiflora
how do you say "green" in German
What is the amplitude, period, and phase shift of y= 5cos( x/2 + 2pi/3)