Question

C. Answer the following questions.
1. Define acceleration.
2. When is the acceleration of a body negative ?
3. What is the S.I. unit of acceleration ?
4. State Newton's three equations of motion.
5. Give one example of uniformly accelerated motion.
6. What is the ratio of total displacement of the body to the total time taken called?
7. What is the acceleration of a body moving with uniform velocity ?
8. Define retardation of a body.
9. Give one example of uniformly retarded motion.
10. Is acceleration a vector quantity or scalar quantity ?​

Answer 1

Answer:

1.Acceleration is the rate of change of velocity

2.Acceleration of the body is said to be negative when the acceleration taking place in opposite direction

3. S.I unit of acceleration is m/s square

4.Every action is an equal and Opposite reaction

5.Ball rolling down

Answer 2

Explanation:

the process by which green plants turn carbon dioxide and water into food using energy from sunlight