Answer:
The recoil velocity of the gun is
and is pointing in opposite direction to the velocity of the bullet.
Step-by-step explanation:
Use conservation of linear momentum, which states that the momentum of the bullet (product of the bullet's mass times its speed) should equal in absolute value the momentum of the recoiling gun (its mass times its recoil velocity).
We also write the mass of the bullet in the same units as the mass of the gun (for example kilograms). Mass of the bullet = 0.010 kg
In mathematical terms, we have:
![5\, kg * v= 0.01 \,kg\,* 360\,\frac{km}{h} \\v=\frac{0.01\,*360}{5} \,\,\frac{km}{h}\\v=0.72\,\,\frac{km}{h}](https://tex.z-dn.net/?f=5%5C%2C%20kg%20%2A%20v%3D%200.01%20%5C%2Ckg%5C%2C%2A%20360%5C%2C%5Cfrac%7Bkm%7D%7Bh%7D%20%5C%5Cv%3D%5Cfrac%7B0.01%5C%2C%2A360%7D%7B5%7D%20%5C%2C%5C%2C%5Cfrac%7Bkm%7D%7Bh%7D%5C%5Cv%3D0.72%5C%2C%5C%2C%5Cfrac%7Bkm%7D%7Bh%7D)
An isosceles triangle is a triangle that has two sides of equal length.
So, you have sides of 7,7,4 in which perimeter is 18
or you have sides of 4,4,7 in which perimeter is 15.
Answer:
An acute angle is an angle that is less than 90 degrees.
An obtuse angle is an angle that is over 90 degrees, but less that 180 degrees.
A right angle is an angle that is exactly 90 degrees.
A straight line has an angle of 180 degrees.
Hope this helps ^-^
Answer: I’m pretty sure it’s b?
Step-by-step explanation:
Answer: 13
Step-by-step explanation: 15 x 10 = 150
15x3= 45
150 + 45 = 195