Find mass when kinetic energy is 1.6 J and velocity is 0.2 m/s
1 answer:
Answer:
4kg
Explanation:
Given parameters:
Kinetic energy = 1.6J
Velocity = 0.2m/s
Unknown:
Mass of the body = ?
Solution:
The kinetic energy of a body is the energy due to the motion of the body.
It is mathematically expressed as;
Kinetic energy = m v²
m is the mass
v is the velocity
1.6 = x 0.2 x v²
1.6 = 0.1v²
v² = 16
v = 4kg
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<h3> What is speed?</h3>Speed is defined as the rate of change of the distance or the height attained.
The given data in the problem is;
The initial diameter is,
initial radius,
The initial crossection area;
The final crossection area;
The initial flow rate is;
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The speed of the water in the wider part will be;
From the continuity equation;
Hence, the speed of the water in the wider part will be 1.194 m/sec.
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