Question

A car starts with a velocity of 10m/s and accelerate at 5m/s². find the final velocity when the car has travelled a distance 30m

Answer 1

u=10 m/s
a=5m/s
${v}^{2} = {u}^{2} + 2as \\ {v }^{2} = {10}^{2} + 2 \times 5 \times 30 \\ {v}^{2} = 100 + 300 \\ {v}^{2} = 400 \\ v = sqrt{400 } \\ v = 20$
v= 20m/s