Podiidn
Answered

IDNStudy.com, ang iyong destinasyon para sa maaasahan at pangkomunidad na mga sagot. Hanapin ang mga solusyong kailangan mo nang mabilis at madali sa tulong ng aming mga eksperto.

The velocity of a man riding a bike is 7 m/s. He starts accelerating and reaches a velocity of 22.6 m/s after a distance of 57.72 m. What is the bike's acceleration?

Sagot :

First you need to get time:

distance = 1/2 (final velocity - initial velocity) x time
d = 1/2 (vf - vi) t
2d = (vf - vi) t
2d / (vf-vi) = t

2(57.72 m) / (22.6 m/s - 7 m/s) = t
115.44 m / 15.6 m/s = t
7.4 seconds = t

Then get the acceleration:

acceleration = (final velocity - initial velocity) / t
a = (22.6 m/s - 7 m/s) / 7.4 seconds
a = 2.11 m/s