Physics Question

A quadcopter is travelling around a curved path as shown. It is travelling at 5m/s and is decelerating at a rate of 0.4m/s2. If the radius of curvature ? is 12m at this point, calculate the x and y components of the acceleration of the quadcopter. Page 6 of 18 Page 7 of 18 During initial flight testing the drone is tethered using a system of pulleys. The system includes a drum that the tether rope can unwind from. At the instant shown the drone is moving upwards at 12ms-1. Calculate (a) the velocity of pulley A, (b) the velocity of pulley B, and (c) the rotational velocity of the drum at the instant shown. Page 8 of 18 Page 9 of 18 A quadcopter weighing 420g and hovering at a height of 50m suddenly loses thrust from the motors and begins to fall. The motors are providing a 4N (combined) of upward thrust during the fall. The motors stop providing force at the point of impact. The quadcopter is designed with 4 sprung legs to absorb impact; which have a combined spring rate of 20N/m. Calculate (a) the speed of the quadcopter just prior to impact with the ground, (b) the maximum deflection of the sprung legs, and (c) the acceleration of quadcopter (due to the force from the legs) at the point of maximum deflection. Page 10 of 18 Page 11 of 18 A quadcopter is designed to transition from level flight (no rotational velocity) to a roll angle of 5 degrees (with no rotational velocity) with no loss of height. Each motor can vary from 0N to 8N upward thrust. The quadcopter has a mass of 420g, and a moment of inertia of 9 x 10-3 kgm2. Assuming that the roll is performed as quickly as possible; sketch both T1 and T2 throughout the motion. Calculate how long the action will take as well as the maximum rotational velocity achieved. Notes: Because the angle is small you can assume that both T1 and T2 act vertically throughout the motion. For simplicity assume that the motors can alter their thrust instantly. Page 12 of 18 Page 13 of.