11 A EOT ANSWERS -Anamika Al Reyada School Abu Dhabi When multiplying a vector with a scalar, multiply each component of the vector with that scalar quantity. ADD OR SUBTRACT VECTOR Note: You can only add or subtract values on the same axis, that is, x with x, y with y and z with z. Do not add x with y or x with z or y with z Velocity is the slope of the position versus time graph. Therefore, v = 0 at the local maxima and minima. Acceleration is the slope of the velocity versus time graph. On a position versus time graph, acceleration, a is zero at inflection points on the curve that are not maxima or minima, i.e. a = 0 as the slope of x vs. t approaches a constant value over some non-zero, time interval, ∆t : Since v1 and –v2 are in the same direction their value will be greatest. PAPER BASED QUESTIONS