Question

Five scenarios of work being done

Answer 1

Answer:

hey friend this is your answer:

a)Examples of positive work done

1. Kicking a football         

2. Moving a chair

3. Throwing a stone 

4. Riding a bicycle 

5. Doctors moving a patient in wheel chair

6. striking a pen into another pen 

7. Riding a skateboard

8. Pushing and moving a table

9. Cutting a fruit with knife

10. A car moving forward

b)Examples of Negative Work done

1. Someone pushes you

2. You are pulled from behind when you try to move front

3. In Arm wrestling, when someone is defeating you.

4. In Tug of War when opponent team pulls hard.

5. Pushing a car up a hill, when you slip back.

6. Trying to catch a heavy object, hands move down

7. When you jump, work done by gravity is negative

8. After you press a spring, it relaxes.

9. Trying to kick a moving football, work done by ball is negative

10. A car moving  on road, work done by friction is negative

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