I think George did more work because George moved the box to the same direction as the force that he applied. So he is applying an upward force to the box to keep it from falling down and moving to the box up the stairs and Kelly does move the box farther than George, but he isn´t doing any work before the force he applies to the box on a different direction than movement.
Hope this helps
Tobey
The puck starts with velocity vector
Its velocity at time is
Over the 0.215 s interval, the velocity changes to
Then the acceleration must have been
which has a direction of about .
The direction of the acceleration is determined by the direction of the change in velocity. This would be calculated by subtracting the initial velocity vector from the final velocity vector. However, the calculation would involve complex trigonometric functions.
In order to find the direction of the acceleration, we need to calculate the direction of the change in velocity and that direction will be the direction of the acceleration.
To calculate the change in velocity, we subtract the initial velocity from the final velocity: (6.42 m/s, 50.0°) - (2.35 m/s, -22°). We then calculate the angle of this vector which represents the change in velocity, and hence the direction of acceleration.
However, this calculation is not straightforward because it involves vector operations and would require the use of trigonometric functions to solve. This is due to the fact that velocity is a vector, meaning it has both a magnitude and a direction. Consequently, this becomes a multi-step process involving trigonometry and physics.
#SPJ2
Answer:
A pure substance in the gaseous state contains more energy than in the liquid state, which in turn contains more energy than in the solid state. Particles has the highest kinetic energy when they are in the gaseous state.
Explanation:
Sana makatulong.
A deficiency in zinc might result in stunted growth and the best answer to the question is TRUE.
The deficiency of zinc is the lack of zinc minerals in diet or human system.
Zinc deficiency is characterized by the following;
Thus, a deficiency in zinc might result in stunted growth and the best answer is TRUE.
Learn more about deficiency in zinc here: brainly.com/question/1052781
Answer:
Explanation:
The statement "H, M, and N are distinct points that are coplanar" means that:
1. "H," "M," and "N" are specific points in space.
2. These points are different from each other, meaning they do not coincide or overlap.
3. All three points lie within the same plane. In other words, they share a common flat surface or two-dimensional space.
This statement is often used in geometry and mathematics to describe the relative positions of points in a two-dimensional space or on a flat surface. It indicates that these points can be represented on the same plane, and their relationships, distances, and angles can be analyzed within that plane.