Chapter 8: Motion

Equations of Motion:
• v = u + at
• s = ut + ⅔at²
• v² = u² + 2as

Q1. A car accelerates from 10 m/s to 30 m/s in 5 s. Find the acceleration and distance.

Solution

a = (30-10)/5 = 4 m/s²
s = 10(5) + ⅔(4)(25) = 50 + 50 = 100 m

Q2. What is the SI unit of acceleration?

Solution

m/s² (meter per second squared)