Respuesta :
Answer:
[tex] \dashrightarrow \: { \tt{average \: velocity = \frac{v + u}{2} }} \\ [/tex]
• u is initial velocity
• v is final velocity
[tex]\dashrightarrow \: { \tt{average \: velocity = \frac{25 + 15}{2} }} \\ \\ = { \tt{ \frac{40}{2} }} \\ \\ = { \tt{20 \: m {s}^{ - 1} }}[/tex]
