Answer:
D gravity
Explanation:
sure na sure na na yan ang tamang sagot please follow me ha kung tama ang sagit ko
The initial kinetic energy of the boat and its rider is
![K_i = \frac{1}{2} mv_i^2 = \frac{1}{2}(900 kg)(1.4 m/s)^2=882 J](https://tex.z-dn.net/?f=K_i%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20mv_i%5E2%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%28900%20kg%29%281.4%20m%2Fs%29%5E2%3D882%20J%20%20%20)
After Sam stops it, the final kinetic energy of the boat+rider is
![K_f = 0 J](https://tex.z-dn.net/?f=K_f%20%3D%200%20J)
because its final velocity is zero.
For the law of conservation of energy, the work done by Sam is the variation of kinetic energy of the system:
![W=K_f-K_i =0-882 J=-882 J](https://tex.z-dn.net/?f=W%3DK_f-K_i%20%3D0-882%20J%3D-882%20J)
where the negative sign is due to the fact that the force Sam is applying goes against the direction of motion of the boat.
Answer: well first you have to show or tell us the “error“ Selena made
Explanation:
To get to know the characteristics of the image formed, you complete the ray diagram.
When the object is place beyond C the image formed is usual smaller than the object.
The image is also inverted.
∴The best statement that describes the image is <span>D.) It will be smaller than the vase and inverted</span>