An object of mass 2 kg moves with a uniform speed of 10 ms⁻¹ for 5 s along a straight path. Determine the magnitude of its acceleration. 0 ms⁻² 1.0 ms⁻² 3.0 ms⁻² 4.0 ms⁻²

The object moves with a uniform speed. Uniform speed means that the velocity of the object is constant.

Acceleration is defined as the rate of change of velocity.

where $\Delta v$ is the change in velocity and $\Delta t$ is the change in time.

Since the speed is uniform, the velocity does not change. Therefore, the change in velocity ($\Delta v$) is zero.

Substitute $\Delta v = 0$ into the acceleration formula.

The magnitude of its acceleration is $0 \text{ ms}^{-2}$.

The correct option is (a).