11250J
Explanation:
Given parameters:
Mass of the person = 100kg
Velocity = 15m/s
Unknown:
Kinetic energy = ?
Solution:
The kinetic energy of a body is energy due to the motion of the body.
Kinetic energy = m v²
m is the mass of the body
v is the velocity
Substituting the parameters:
K. E = x 100 x 15² = 11250J
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Kinetic energy brainly.com/question/6536722
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To solve this problem it is necessary to address the concepts related to Torque as a function of the force and distance where it is applied and the moment of inertia from which the torque, moment of inertia and angular acceleration are related.
By definition the torque is defined as
Where,
F = Force
r = Radius
For our values we have:
Consequently the calculation of the moment of inertia would then be given by the relationship
Replacing with our values
The moment of inertia of the boxer's forearm
Answer:
R = 25 Ohms
Explanation:
Given the following data;
Voltage (p.d) = 15 V
Current = 0.6 A
To find the resistance of the wire;
Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.
Mathematically, Ohm's law is given by the formula;
Where;
V represents voltage measured in voltage.
I represents current measured in amperes.
R represents resistance measured in ohms.
Substituting into the equation, we have;
R = 25 Ohms