Answer:
Total momentum = 16 Kgm/s
Explanation:
Let the momentum of the two balls be A and B respectively.
Momentum A = 16 kgm/s
Momentum B = 0 kgm/s (since the ball is at rest).
Total momentum = A + B
Total momentum = 16 + 0
Total momentum = 16 Kgm/s
Momentum can be defined as the multiplication (product) of the mass possessed by an object and its velocity. Momentum is considered to be a vector quantity because it has both magnitude and direction.
Mathematically, momentum is given by the formula;
These two forces are called action and reaction forces and are the subject of Newton's third law of motion.
<em>Have a luvely day!</em>
Answer:
Distance / Time = Speed
Explanation:
This is because you want to see how much distance you cover within a time interval.
For example, MPH, is a unit for speed, which is miles (distance) per hour (time)
Here elastic balloon launcher will behave like an ideal spring
so here we have
spring constant k = 115 N/m
mass of balloon = 1.3 kg
Part a)
Stretch in the band is given as
x = 0.8 m
now the force on the balloon is given by
F = k x
now from above
so it will exert 92 N force on it
Part b)
Elastic potential energy is given as
so here we have
Part c)
Here in this case we can say that kinetic energy gained by the balloon must be same as the elastic potential energy stored in the rubber because there is no energy loss in this system
So kinetic energy = 36.8 J
Part d)
As we know by the formula of kinetic energy
so speed of the balloon will be 7.52 m/s
