Kinetic energy = (1/2) (mass) (speed)²
Kinetic energy = (1/2) (6.35 kg) (6.0 m/s)²
Kinetic energy = (3.175 kg) (36 m²/s²)
Kinetic energy = (3.175 · 36) (kg-m²/s²)
1 kg-m²/s² = 1 "Joule"
<em>Kinetic energy = 114.3 Joules</em>
W = fd Divide both sides by d
= f Switch the sides to make it easier to read
f =
w = fd Divide both sides by f
= d Switch the sides to make it easier to read
d =
Answer:
√((-3.00)² + (-4.00)²) = 5.00
Explanation:
The conservation of momentum states that the total momentum in a system is constant if there is no external force acting on the system. The total momentum in the gun bullet system is 0 so it must stay that way.
The momentum of the bullet is mv = 0.015*500=7.5
The momentum of the gun must be the same to keep the total momentum of the system equal to zero, so we know that p = 7.5 for the gun.
Substituting this in we get:
7.5=3.1x
x=7.5/3.1
x=2.42
So the speed of the gun is 2.4m/s.