Question

Choose the correct option.






Please!!!!!!

Answer 1

Explanation:

1. C

3.A

4.D

5.

6.D

9.C

10.D

Answer 2

Explanation:

1. The SI unit of work is Joule and joule is also as a unit of energy.
2. Answer of the second question is both situations. Because in both situations the spring will have maximum potential energy.
3. This one is kinatic energy . Because it is in moving state.
4. Answer of this question is all of the above. Because all the reasons are responsible for this.
5. In this situation the kinetic energy of the ball will increase and potential energy of this ball will decrease . This is because in the moving state there must be a velocity and if a velocity is increasing then kinetic energy will automatically increase.
6. When the velocity of a ball will be doubled then the kinetic energy of that ball will be 4 times . Because kinetic energy is mv²/2.
7. 26 s
8. 100j