In the International System of Units (SI), which option represents a basic unit?

Given the velocity-time graphs of a car and a truck that are initially beside each other at time t = 0, what is true about the distances each vehicle has traveled since t = 0 at time T?

If a small tow-truck can accelerate with a maximum acceleration 'a' on a level road by itself, what would be its maximum acceleration while towing a van that is twice its own mass? Assume no frictional effects.

Among the following options, which represents a scalar quantity?

Given that the power P dissipated in a resistor with resistance R and current I is expressed by

P = I² R,

and considering a specific resistor with a ±10% uncertainty in resistance and a ±3% uncertainty in current, what is the most accurate estimation for the uncertainty in the power dissipated?

How can the impact of errors be minimized through multiple measurements of a particular value?

As the angle θ of vector v increases from 0° to 90° relative to the x-axis, how do its x and y components change?