A 5.5 kg rifle fires an 11 g bullet with a velocity of 1000 m/s. (a) What is the recoil velocity of the rifle? (b) If the shooter holds the rifle firmly against his shoulder, What will be the recoil velocity? Assume the mass of the shooter is 120 kg. Please answer seriously (;´༎ຶٹ༎ຶ`)

Given,

Mass of a rifle = 5.5 kg

Mass of a bullet = 11 g

Speed of a bullet = 1000 m/s

To find,

(a) The recoil velocity of the rifle.

(b) If the shooter holds the rifle firmly against his shoulder, What will be the recoil velocity.

Solution,

(a) Let v₁ is the recoil velocity of the rifle. We can use the conservation of momentum to find it. The momentum of the system will remains conserved.

So, the recoil velocity of the rifle is 2 m/s and it is in opposite direction of he bullet.

(b) Let V is the recoil velocity if the shooter holds the rifle firmly against his shoulder. Again using the conservation of momentum.

Therefore, this is the required solution.

the answer would be a

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.