A crate of mass 2.5 kg is pulled across a horizontal floor by a force of 12.0 N.
The frictional force acting on the crate is 2.0 N.
What is the acceleration of the crate?
0.25 m/s20.25\text{ m/s}^20.25 m/s2
4.0 m/s24.0\text{ m/s}^24.0 m/s2
4.8 m/s24.8\text{ m/s}^24.8 m/s2
5.6 m/s25.6\text{ m/s}^25.6 m/s2
245 exam-style questions on CIE IGCSE Physics 1.5 Forces, covering 1.5.1a Forces, resultant force and motion, 1.5.1b Load–extension graphs and the spring constant, 1.5.1c Friction and drag, 1.5.1d Force, mass and acceleration, 1.5.1e Motion in a circular path, 1.5.2a Moment of a force, 1.5.2b Principle of moments and equilibrium, and 1.5.3 Centre of gravity and stability. Each one has a worked solution and a mark scheme showing where the marks go.