Question

calculate the accerelation of Josh riding his bicycle in a straight line that speeds up from 4 m/s to 6 m/s in 5 seconds.

Answer 1

AnswEr :

• Initial velocity (u) = 4 m/s
• Final velocity (v) = 6 m/s
• Time (t) = 5s

Acceleration is defined as rate of change of velocity. So, formula for acceleration will be :

$\longrightarrow \tt{a\ =\ \dfrac{\Delta v}{\Delta t}} \\ \\ \\ \longrightarrow \tt{a\ =\ \dfrac{v\ -\ u}{t}} \\ \\ \\ \longrightarrow \tt{a\ =\ \dfrac{6\ -\ 4}{5}} \\ \\ \\ \longrightarrow \tt{a\ =\ \dfrac{2}{5}} \\ \\ \\ \large \longrightarrow \underline{\boxed{\frak{a\ =\ 0.4\ ms^{-2}}}}$

Answer 2

AnswEr :

Initial velocity (u) = 4 m/s

Final velocity (v) = 6 m/s

Time (t) = 5s

Acceleration is defined as rate of change of velocity. So, formula for acceleration will be :

Answer:

Explanation: