1In the equation of motion Δx = viΔt + ½a(Δt)², identify which variables are considered vectors according to the physics principles in the text.
2A rocket of mass 1000 kg (including fuel) accelerates vertically upward at 2 m·s⁻². Neglecting air friction, calculate the upward thrust force produced by the rocket.
3A box remains stationary on a slope even as the angle of the slope is gradually increased. Which of the following statements correctly describe the changes in the forces acting on the box?
4Define the 'magnitude of an electric field' at a specific point in space.
5If a consumer spends R 100 on electricity at a rate of R 2,56 per kWh, how many hours can they run a 10 W LED light bulb?
6An athlete starts from rest and reaches a velocity of 10 m/s North in 1 minute. Calculate the magnitude of the athlete's acceleration in m·s⁻².
7Which of the following components or laws are specifically associated with the operation of an AC generator (alternator)?
8A circuit contains a battery with an internal resistance of 1 Ω. When the switch is closed, an ammeter measures a total current of 5 A. How much charge flows through the circuit in 2 minutes?
9State Newton's Second Law of Motion.
10According to Newton's Law of Universal Gravitation, if the distance between the centers of two celestial bodies is tripled, the magnitude of the gravitational force between them will:
