I know that the minimum speed is at the heighest point when the x axis is 0 because no gravity is acting on it. And i know you are supposed to use this formula xcosa but i dont understand why? Please help exam soon!!!!
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A projectile has minimum speed at the top of the trajectory.
The projectile have minimum speed when it is in top of prabolic and it have max sped when it is in intial point
The speed and direction of the wind and the elevation of the machine firing the projectile. If the machine is pointing straight up, the projectile will not go very far. If it is pointing at the right elevation, the projectile will go farther.
Let us try and answer this quest by using a bullet or shell fired from a gun. The projectiles maximum speed is at the point of leaving its casing. From that moment it begins to be slowed by air pressure in front of the projectile and also curves towards the earth attracted by gravity. Point of interest. The rifling of a guns barrel does not make the projectile go faster. It makes it spin so that it travels straighter and not tumble like the old none spinning projectiles.
They were shooting projectile out of their guns.