Question

(1).In a machine, reduction in friction increase the _____ of the machine (2).The friction in air is _____ compared to that in vacuum.​

Answer 1

Answer 1. Heat

2. lesser

Answer 2

Answer:

Explanation:

If we don't reduce the friction in machines, it will damage the parts of machinery due to the excess generation of heat. Also, if the friction is not reduced, it requires more power to complete the task.