Multiple forces act on an object at the same time. Find out more with BBC Bitesize. For students between the ages of 11 and 14.

Do you need some practice with force diagrams for your introductory (or advanced) physics course? Here are three questions (and the last one is awesome) about the motion of a bike as it is pulled.

Typically, the first task when setting up a mechanics problem is to create a force diagram – a diagram of the magnitude and direction of all forces involved in a system. One challenge in ...