An apple falls from a tree branch.
The initial velocity of the apple is 0 m/s.
The acceleration of the falling apple is 10 m/s2.
The apple falls a distance of 1.8 m to the ground.
Calculate the velocity of the apple just before it hits the ground.
Use the equation:
v2−u2=2×a×x v^2 - u^2 = 2 \times a \times x v2−u2=2×a×x53 exam-style questions on Edexcel GCSE Physics 2.2 Speed, velocity and acceleration, covering 2.2.1 Speed and distance–time graphs, 2.2.2 Acceleration and the uniform-acceleration equation, 2.2.3 Velocity–time graphs, and 2.2.4 Measuring speed, typical speeds and free-fall acceleration. Each one has a worked solution and a mark scheme showing where the marks go.