Speed-time graphs: area & distance
Take your time. Show your thinking.
1. On a speed-time graph, a train accelerates uniformly from rest to 18 m/s in 4 s and then continues at a constant speed of 18 m/s for a further 15 s. Calculate the total distance travelled.
v_max = 18 m/s (t₁ = 4 s, t₂ = 15 s) · Distance = Area = ½vt₁ + vt₂ 2. On a speed-time graph, a train accelerates uniformly from rest to 8 m/s in 6 s and then continues at a constant speed of 8 m/s for a further 15 s. Calculate the total distance travelled.
v_max = 8 m/s (t₁ = 6 s, t₂ = 15 s) · Distance = Area = ½vt₁ + vt₂ 3. On a speed-time graph, a train accelerates uniformly from rest to 12 m/s in 8 s and then continues at a constant speed of 12 m/s for a further 14 s. Calculate the total distance travelled.
v_max = 12 m/s (t₁ = 8 s, t₂ = 14 s) · Distance = Area = ½vt₁ + vt₂ 4. On a speed-time graph, a train accelerates uniformly from rest to 10 m/s in 4 s and then continues at a constant speed of 10 m/s for a further 10 s. Calculate the total distance travelled.
v_max = 10 m/s (t₁ = 4 s, t₂ = 10 s) · Distance = Area = ½vt₁ + vt₂ 5. On a speed-time graph, a train accelerates uniformly from rest to 12 m/s in 8 s and then continues at a constant speed of 12 m/s for a further 5 s. Calculate the total distance travelled.
v_max = 12 m/s (t₁ = 8 s, t₂ = 5 s) · Distance = Area = ½vt₁ + vt₂ 6. On a speed-time graph, a train accelerates uniformly from rest to 24 m/s in 6 s and then continues at a constant speed of 24 m/s for a further 5 s. Calculate the total distance travelled.
v_max = 24 m/s (t₁ = 6 s, t₂ = 5 s) · Distance = Area = ½vt₁ + vt₂ 7. On a speed-time graph, a train accelerates uniformly from rest to 28 m/s in 10 s and then continues at a constant speed of 28 m/s for a further 10 s. Calculate the total distance travelled.
v_max = 28 m/s (t₁ = 10 s, t₂ = 10 s) · Distance = Area = ½vt₁ + vt₂ 8. On a speed-time graph, a train accelerates uniformly from rest to 28 m/s in 3 s and then continues at a constant speed of 28 m/s for a further 5 s. Calculate the total distance travelled.
v_max = 28 m/s (t₁ = 3 s, t₂ = 5 s) · Distance = Area = ½vt₁ + vt₂ 9. On a speed-time graph, a train accelerates uniformly from rest to 48 m/s in 8 s and then continues at a constant speed of 48 m/s for a further 14 s. Calculate the total distance travelled.
v_max = 48 m/s (t₁ = 8 s, t₂ = 14 s) · Distance = Area = ½vt₁ + vt₂ 10. On a speed-time graph, a train accelerates uniformly from rest to 50 m/s in 11 s and then continues at a constant speed of 50 m/s for a further 4 s. Calculate the total distance travelled.
v_max = 50 m/s (t₁ = 11 s, t₂ = 4 s) · Distance = Area = ½vt₁ + vt₂ 11. On a speed-time graph, a train accelerates uniformly from rest to 30 m/s in 6 s and then continues at a constant speed of 30 m/s for a further 5 s. Calculate the total distance travelled.
v_max = 30 m/s (t₁ = 6 s, t₂ = 5 s) · Distance = Area = ½vt₁ + vt₂ 12. On a speed-time graph, a train accelerates uniformly from rest to 22 m/s in 5 s and then continues at a constant speed of 22 m/s for a further 5 s. Calculate the total distance travelled.
v_max = 22 m/s (t₁ = 5 s, t₂ = 5 s) · Distance = Area = ½vt₁ + vt₂