Here start with this, I made an drawing. U like it :)
Uhhhh...you should have paid attention in class, just saying...
Answer:
I_total = L² (m + M / 3)
Explanation:
The moment of inertia is defined by
I = ∫ r² dm
It is appreciated that it is a scalar quantity, for which it is additive, in this case the system is formed by two bodies and the moment of inertia must be the sum of each moment of inertia with respect to the same axis of rotation.
The moment of inertia of a bar with respect to an axis that passes through ends is
I_bar = 1/3 M L²
The moment of inertia of a particle is
I_part = m x²
We have to assume the point where the particle sticks to the bar, suppose it sticks to the end
x = L
Total moment of inertia is the sum of these two moments of inertia
I_total = I_bar + I_particule
I_total = 1/3 M L² + m L²
I_total = L² (m + M / 3)
Answer:15.66 J
Explanation:
mass of block
Force magnitude=7.5 N
Initial velocity =
Final velocity=
Initial Kinetic Energy=
=
Final Kinetic Energy=
=
Work Done =Final -Initial Kinetic energy=37.714-22.056=15.66 J
Answer: The distance traveled by the car once around the racetrack = 100 meters.
Explanation:
Given: The length of the track = 100 meters
- The distance is defined as the actual measurement of the path traveled by a body or an object.
Then, the distance traveled by the car around the racetrack = Length of the track = 100 meters.
Hence, the distance traveled by the car once around the racetrack = 100 meters