Ron standing 1m far from a sensor moves away from the sensor for ron then halts for 2 seconds, and notes down these values. ron then walks to where the sensor was kept at a speed of 3m/s for the next 2 seconds a) draw a position time graph for this. [x - axis -time (s) y-axis position (m)] b) find out the distance from the sensor at time t 4 seconds. c) calculate the slope at t-6 seconds d) what you infer from the value obtained in (c)?