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Sagot :
So, the acceleration of the bicycle is approximately -1.67 m/s² or it can be said to be decelerating approximately 1.67 m/s².
Introduction
Hi ! Here I will help material about linear motion changes regularly, which is where you will hear a lot of the term acceleration. Acceleration occurs when an object's speed increases in a certain time interval. Acceleration can be negative which is called deceleration. The relationship between acceleration with velocity and time is manifested in the equation:
[tex] \boxed{\sf{\bold{a = \frac{v_2 - v_1}{t}}}} [/tex]
With the following conditions :
- a = acceleration (m/s²)
- [tex] \sf{v_2} [/tex] = object's final velocity (m/s)
- [tex] \sf{v_1} [/tex] = object's initial velocity (m/s)
- t = interval of the time (s)
Problem Solving
We know that :
- [tex] \sf{v_2} [/tex] = object's final velocity = 4 m/s
- [tex] \sf{v_1} [/tex] = object's initial velocity = 12 m/s
- t = interval of the time = 4.8 s
What was asked :
- a = acceleration = ... m/s²
Step by step :
[tex] \sf{a = \frac{v_2 - v_1}{t}} [/tex]
[tex] \sf{a = \frac{4 - 12}{4.8}} [/tex]
[tex] \sf{a = \frac{-8}{4.8}} [/tex]
[tex] \boxed{\sf{a \approx -1.67 \: m/s^2}} [/tex]
So, the acceleration of the bicycle is about -1.67 m/s² or it can be said to be decelerating around 1.67 m/s².
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