a 30 tonne lorry changed velocity from 5m/s to 15m/s in 30 seconds (1 tonne = 1000 kg) . calculate the force accelerating the lorry

Answer:Force 9 900 NExplanation:Given:m = 30 tonne = 30 000 kgV₀ = 5 m/sV = 15 m/sΔt = 30 s___________F - ?Acceleration:a = ΔV / Δt = (V - V₀) / Δta = (15 - 5) / 30 ≈ 0.33 m/sForce:F = m·a = 30 000·0.33 = 9 900 N