Identify three ways in which friction acting against the bicycles or cyclists has been reduced. On other occasions, it is useful to increase the amount of friction acting. Identify two places on a bicycle where it friction is increased. For each place, explain why friction should be increased. The cyclists find that as they start off, they can accelerate easily. After a while though, they have to pedal hard just to maintain a constant speed. Explain why this happens. End of exercise 6 Exercise 7 Newton’s First Law Copy and complete the following:
Identify three ways in which friction acting against the bicycles or cyclists has been reduced. On other occasions, it is useful to increase the amount of friction acting. Identify two places on a bicycle where it friction is increased. For each place, explain why friction should be increased. The cyclists find that as they start off, they can accelerate easily. After a while though, they have to pedal hard just to maintain a constant speed. Explain why this happens. End of exercise 6 Exercise 7 Newton’s First Law Copy and complete the following:
HOMEWORK_-_Dynamics_and_Space1.docx