The statements below show what occurs when the power of a machine is increased. 1. The work done in a given time decreases. 2. The work done in a given time increases. 3. The time taken to do a given quantity of work decreases. 4. The time taken to do a given quantity of work increases. Which statements are correct?
- A1 and 3
- B1 and 4
- C2 and 3
- D2 and 4