SkullNog SkullNog

21-09-2020
Physics

contestada

A car accelerates uniformly in a straight line
from rest at the rate of 2.8 m/s^2.
How long does it take the car to travel 69 m?
Answer in units of s.

Respuesta :

LammettHash LammettHash

22-09-2020

The car covers a distance d after time t of

d = (2.8 m/s²) t²

Solve for t when d = 69 m:

69 m = (2.8 m/s²) t²

t² = (69 m) / (2.8 m/s²)

t ≈ 4.96 s

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