An autonomous electric delivery pod is being tested on a straight horizontal guideway.
Suggest two factors that affect the maximum distance (range) the delivery pod can travel before its battery needs to be recharged.
The maximum acceleration of the pod is 2.5 m/s22.5\text{ m/s}^22.5 m/s2. Calculate the time taken for the velocity of the pod to increase from 4.0 m/s4.0\text{ m/s}4.0 m/s to 19.0 m/s19.0\text{ m/s}19.0 m/s at this maximum acceleration.
In a different run, the pod accelerates from rest (u=0 m/su = 0\text{ m/s}u=0 m/s) at a constant rate of 1.6 m/s21.6\text{ m/s}^21.6 m/s2 over a distance of 180 m180\text{ m}180 m. Calculate the final velocity of the pod. Use the equation:
v2−u2=2as v^2 - u^2 = 2as v2−u2=2asWhen travelling at its constant cruising speed, the steady resistive force (air drag and mechanical friction) acting on the pod is 450 N450\text{ N}450 N. Calculate the work done against this resistive force when the pod travels a distance of 8.5 km8.5\text{ km}8.5 km at this speed.