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 :

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

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