Acceleration and velocity
Answer:
The total kinetic energy of the system before the collision is 57 Joules.
Explanation:
Given that,
Mass of first block,
Speed of first block,
Mass of second block,
Speed of first block,
We need to find the total kinetic energy of the system before the collision. It is equal to the kinetic energies of both the blocks. It is given by :
So, the total kinetic energy of the system before the collision is 57 Joules.
Given:
The power is
The voltage is
The resistance is
To find:
a) the current
b) the power loss
c) the percent loss
Explanation:
a) The current is,
Hence, the current is 6.21 kA.
b)
The power loss is,
Hence, the power loss is 57.8 MW.
c)
The percentage loss is
Hence, the power loss percentage is 32.1 %.