Which set of physical quantities consists only of scalar quantities?
An object moving in a positive direction experiences an acceleration of +2,0 m.s-2. This means the object
If the acceleration of an object is zero, then that object cannot be moving
The velocity vs time graph for the motion of a car on a straight road is shown in the graph. Assume that the car starts at the origin 𝓍 = 0 at time t = 0.
The car's initial velocity is east. After 10 s is the car's position east or west from its starting point?
The velocity vs time graph for the motion of a car on a straight road is shown in the graph. Assume that the car starts at the origin 𝓍 = 0 at time t = 0.
During which time interval(s) is the car speeding up? Select all that apply.
The velocity vs time graph for the motion of a car on a straight road is shown in the graph. Assume that the car starts at the origin 𝓍 = 0 at time t = 0.
If the car's initial velocity is east, during which time interval(s) is the acceleration west? Select all that apply.
The graph shows the velocity of an object over time. Which one of the following options correctly shows how the acceleration of the object changes with time?
The motions of a car and a truck along a straight road are represented by the velocity-time graphs in the figure. The two vehicles are initially alongside each other at time t = 0. At time T, what is true of the distances traveled by the vehicles?