Let K.E
be the intial K.E and K.E
be new K.E,
I = 
K.E
--- (i)
K.E
Therefore,
K.E
----(ii)
Dividing i and ii,
I
K.E
K.E
Therefore,
K.E
Dividing i and ii,
Can someone help me out??? I need this done ASAP TYSM!!
1 answer:
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The net force acting on the car is equal to -12000 Newton.
<u>Given the following data:</u>
- Mass = 1,200 kg
- Initial velocity = 30 m/s.
- Final velocity = 0 m/s (since the car came to a stop).
- Time = 3 seconds.
To determine the net force acting on the car:
<h3>How to calculate the net force.</h3>Mathematically, the net force acting on the car is given by Newton's Second Law of Motion:
<u>Where:</u>
- m is the mass.
- t is the time.
- u is the initial velocity.
- u is the final velocity.
Substituting the given parameters into the formula, we have;
Net force = -12000 Newton.
Read more on net force here: brainly.com/question/1121817
Answer:
Velocity of the electron in the beam.
Radius of the circulating electrons due to the magnetic field.
Explanation:
We have a Mathematical expression for the force on a moving charge in a magnetic field as:
...........................(1)
where:
q= charge on the particle in coulomb
v= velocity of the charge projected into the magnetic field
B= intensity of the magnetic field in tesla
= angle between the velocity and direction of magnetic field
For the forces on rotating mass we have the formula:
..........................................(2)
where:
m= mass of the charged particle
v= velocity of projection of charge into the magnetic field
r= radius of the path traced by the charge in the magnetic field
From eq. (1) and (2) we can calculate the magnetic field .
Now,
Using Ampere's Law we have:
where:
I= current in the wire
The permeability of free space.
r= radial distance from the current carrying wire( in this case it is same as the radius of the circular path)