Question

12. A frain moves from rest to a speed of 25 m/s in 30.0 seconds. What is its acceleration?

Answer 1

• initial velocity=u=0m/s
• Final velocity=v=25m/s
• Time=t=30s

$\\ \tt\longmapsto Acceleration=\dfrac{v-u}{t}$

$\\ \tt\longmapsto Acceleration=\dfrac{25-0}{30}$

$\\ \tt\longmapsto Acceleration=\dfrac{25}{30}$

$\\ \tt\longmapsto Acceleration=0.8m/s^2$