SSahanjeet1 SSahanjeet1
  • 20-06-2022
  • Physics
contestada

A train accelerated from 20km/hr to 80km/hr in 4 minutes. How much distance does
it cover in this period? Assume that the tracks are straight?

Respuesta :

hannjr hannjr
  • 20-06-2022

Answer:

S = V0 t + 1/2 a t^2

a = (V2 - V1) / t = (80 - 20) km/hr / .067 hr = 900 km/hr^2

S = 20 km/hr * 067 hr + 1/2 * 900 * .067^2 km = 3.34 km

Answer Link

Otras preguntas

5 times the smaller number of two consecutive numbers is added to 3 times the bigger, the result is 579. find the smaller number
Remove all grouping symbols and combine like terms,a - { a - [ a- (2a - b) + 3a ]}
what does it mean to 'kick the bucket'?
what rule applies most closely to this word? avail-
What are the uses of chlorine??
Remove all grouping symbols and combine like terms,a - { a - [ a- (2a - b) + 3a ]}
Write the expressions 3m -4n -8 as a sum. how does this help you identify the terms of the expression? identified the terms.
The perimeter of a basketball court is 114 meters and the length is 6 meters longer than twice the width. What are the length and the width?
Explain the positives and negatives of modernization in Middle Eastern countries
Nina uses an average of 40 litres of diesel each week. Diesel is £1.30 per litre. how much does she spend on diesel each week?