I need solve this assignment

Current Attempt in Progress A dart is thrown horizontally toward X at 20 m/s as shown. It hits Y 0.1 s later. The distance XY is: X Q13 O2m O 1m O0.5 m O0.1 m O 0.05 m Current Attempt in Progress A stone is tied to the end of a string and is swung with constant speed around a horizontal circle with a radius of 1.5 m. If it makes two complete revolutions each second, its acceleration is: O0.24 m/s2 O 2.4 m/s2 Q14 O 24 m/s2 O 240 m/s2 O 2400 m/s2 Current Attempt in Progress An object is at rest at x = 0 m, y = 0 m. It accelerates at a rate of (-3.2 m/s2)i + (8.6 m/s?)j. After accelerating for 4.7 seconds its coordinates are: Ox=-48 m, y= 340m Q15 Ox= -70m,y = 190m Ox= -35 m, y = 95 m Ox=-15 m, y = 40m Ox=-24m,y = 170m