China Naming Network - Ziwei knowledge - As shown in 15, the geomantic omen is Pingyang, the carbon engine appears rapidly at a height of 500 meters from the ground, which is 3 degrees, and there is one on the ground right in front of the plane.
As shown in 15, the geomantic omen is Pingyang, the carbon engine appears rapidly at a height of 500 meters from the ground, which is 3 degrees, and there is one on the ground right in front of the plane.
This is a typical problem of flat throwing motion.
(1) Because the height determines the time, it is obtained from H = 1/2gt 2: t = √ (2h/g) = √ (2 * 500/10) =10s.
x = v 0t = 100 * 10 = 1000m
Therefore, the bomb should be dropped at a horizontal distance of 1000 meters from the enemy base target.
(2) vy = gt =10 *10 =100 m/s.
The velocity of the bomb before landing is v = √ (VX 2+vy 2) = √ (1002+1002) =141.4m/s.