A go-kart and its driver have a combined mass of 180 kg180\text{ kg}180 kg.
On a straight horizontal section of a track, the go-kart accelerates from rest at 4.5 m/s24.5\text{ m/s}^24.5 m/s2.
The go-kart reaches the end of the straight section in 6.2 s6.2\text{ s}6.2 s. Calculate the speed of the go-kart at the end of the straight section.
Calculate the magnitude of the resultant force on the go-kart and driver on this straight section.
At the end of the straight section, the track remains horizontal but bends to the left. When the go-kart reaches the bend, it travels around the bend in a circular path at a constant speed.
Velocity is a vector quantity. State how a vector quantity differs from a scalar quantity.
Describe what happens to the velocity of the go-kart as it travels around the bend at a constant speed.
Explain why there must be a resultant force on the go-kart as it travels around the bend.
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.