A projectile is fired with an initial speed of 100 m/s and angle of elevation 30 degrees. The projectile eventually hits the ground. How far from the initial position (which can be assumed to be the origin) does it travel? Find the speed at impact (with the ground). Note that the projectile is sibject to the downward acceleration due to gravity of 9.8meters per sq. sec

Explanation:

Given

launch velocity

Launch angle

Range of Projectile

Horizontal velocity remain same and only vertical velocity changes.

Initially  vertical  velocity is in upward direction but as soon as it reaches the ground its direction change but magnitude remain same.

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..

f=ma newton's second law 7x8=56n