The number of revolutions of two pulleys is inversely proportional to their diameters. If a 24-inch diameter pulley making 400 r
2 answers:
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Answer:
a
b
Explanation:
From the question we are told that
The radius of the flywheel is
The mass of the flywheel is
The rotational speed of the flywheel is
The power supplied by the motor is
Generally the moment of inertia of the flywheel is mathematically represented as
substituting values
The kinetic energy that is been stored is
substituting values
Generally power is mathematically represented as
=>
substituting the value
Answer:
3) 52500N
Explanation:
We use the mathematical definition of impulse as follows;
were F is the force experienced, t is the time of impact, m is the mass of the object and v is the velocity of impact.
Given; m = 4.5kg, v = 35m/s, t = 3 milliseconds
however,
From equation (1);
.
Substituting all necessary values into equation (2), we obtain the following;