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.

Newton's laws of motion, often perceived as abstract, are actually evident in everyday experiences. The first law explains inertia, demonstrated by seatbelts in cars. The second law, F=ma, clarifies ...

Platelet clotting, for example, is an important biological process that can only be fully understood if a mechanical account of platelet dynamics is given. Typically, the first task when setting up a ...

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 ...