Answer:
a = 0.6 m/s² .
Explanation:
given that:
• Vi = 12m/s
• Vf = 21 m/s
• t = 15 s
• a = ?
∴ a = (Vf - Vi) / t
⇒ a = (21 - 12) / 15
⇒ a = 0.6 m/s² ...answer...
Note that:
▪ 'Vf' refers to final velocity
▪ 'Vi' refers to initial velocity
▪ 't' refers to time period
▪ 'a' refers to acceleration
hope that helps...
