Answer:
The speed of the particle is 34.66 m/s.
Explanation:
Given that,
Mass of particle = 50 g
Charge of particle = 4.0 mC
Velocity = 25 m/s
Electric field = 60 N/C
Time = 5.0 sec
We need to calculate the speed in y direction
Using formula of speed
Where, a = acceleration
Put the value in to the formula
We need to calculate the speed of the particle
Put the value into the formula
Hence, The speed of the particle is 34.66 m/s.
Initial inertia = 3.6 kg . m^2
final inertia = 0.80 kg.m^2rotational velocity final = 4.1 rev/s
rotational velocity initial = 0.90 rev/s
lo= lf(final inertia) * Wf(rotational velocity final)/ Wo (rotational velocity initial)
lo = 0.8*4.1 / 0.90 = 3.6 kg m2
Answer:
Explanation:
If there is only 1 force, the body can never be in equilibrium, providing that the force is not zero (and that would hardly be a force. Zero is possible in math and it means something. It is debatable in physics).
You cannot think of a condition where something is stationary on planet earth and there are not 2 forces or more forces involved.
Think of something like a block of wood sitting on a table. It is not moving, we'll say. Gravity is holding it down, but what is pushing up on it?
The table is. There are 2 forces and they are equal in magnitude, but opposite in direction. That matters.
momentum is the product of mass and velocity
