1.
A projectile is launched with an initial speed of 40m/s40\,\text{m/s} at an angle 3030^\circ above the ground. The projectile lands on a hillside 2.0s2.0\,\text{s} later. The net displacement from where the projectile was launched to where it hits the target is (Take g=10m/s2g = 10\,\text{m/s}^2):