Question

A car accelerates from rest to 100 m/s in 20 s. What is its acceleration?

Answer 1

• initial velocity=0m/s=u
• Final velocity=v=100m/s
• Time=t=20s

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

$\\ \sf\longmapsto Acceleration=\dfrac{100-0}{20}$

$\\ \sf\longmapsto Acceleration=\dfrac{100}{20}$

$\\ \sf\longmapsto Acceleration=5m/s^2$