Vector components (-3,-9), magnitude 9.9,direction angle 251.56 what is the bearing and the map bearing

The answer is as follows in the photo

What the heck r u talkin bout? ?

Answermake them get very hot and over time wear them out;

At maximum height, kinetic energy is converted in potential energy  formula: at max height, ke = ½ * 0.27kg * (16m/s) ² = 34.56 j  so the remaining pe = (41.70 – 34.56)= 7.14 j = 0.27 kg * 9.8m/s² * h  = (9.8/7.14 * 0.27)so max height h = 5.08 or 5 m