RemingtynE538134 RemingtynE538134
  • 03-11-2022
  • Physics
contestada

I have this homework i need help with ?Part (a)

I have this homework i need help with Part a class=

Respuesta :

KamalaB279509 KamalaB279509
  • 03-11-2022

Given that the mass of train is

[tex]m=\text{ }8.12\times10^6\text{ kg}[/tex]

The deceleration of the train is

[tex]\begin{gathered} a\text{ = -104 km/h} \\ =-104\times\frac{5}{18} \\ =\text{ -28.88 m/s} \end{gathered}[/tex]

The braking force can be calculated by the formula

[tex]F=ma[/tex]

Substituting the values, the braking force will be

[tex]\begin{gathered} F=8.12\times10^6\times(-28.88) \\ =2.348\times10^8\text{ N} \end{gathered}[/tex]

Thus, the braking force is 2.348 x 10^8 N.

Answer Link

Otras preguntas

What are the functions of receptors in our body? Think of a situation where receptors do not work properly. What problems are likely to arise?
How do you?...Multiply out and simplify 10(2x-1)-20x?
what is a high structure part of a church which has 5 letters
What is the amplitude of y=1/2 sin2x
what's another word for over thinking?
what is a high structure part of a church which has 5 letters
you have a standard deck of 52 cards. you pick one card and then, with out putting the first card back, you pick a second card. what is the probability that bot
What is the least common denominator for 5/6 and 3/8. 3/4 and 6/7
What is the least common denominator for 5/6 and 3/8. 3/4 and 6/7
Mini-Project: Cents and the Central Limit Theorem 1. Collect a sample of at least 50 pennies by setting aside all the pennies you receive in change for severa