What are the main characteristics of S.H.M
2 answers:
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Answer:
0
7500J
7500J
Explanation:
Given parameters:
Mass of car = 600kg
Velocity = 5m/s
Unknown:
Original kinetic energy = ?
Final kinetic energy = ?
Work used = ?
Solution:
The kinetic energy of a body is the energy due to the motion of a body.
It can be solve mathematically using expression below;
K.E = m v²
where m is mass
v is velocity
original kinetic energy;
The car started at rest and v = 0, therefore K.E = 0
Final kinetic energy;
K.E = x 600 x 5² = 7500J
Work done:
Work done = Final K.E - Initial K.E = 7500 - 0 = 7500J
Answer:
Explanation:
Given
Current is flowing towards right side
Considering right side i.e. +x to be positive and direction outside the paper be +k
suppose charge is below the wire and is moving towards right
magnetic field below the wire is outside the Paper using right hand thumb rule
i.e. Force acts in Downward direction
i charge is moving towards left i.e.
towards upward direction
