1 The angle, with reference to the horizontal plane, between the paths taken by two bodies before they collide. Compare angle of incidence.
2 The direction of approach of an athlete about to perform a jump. For high-jumpers, the recommended angle of approach is about 20–30°. An angled approach (that is, one which is not at right angles to the bar) has the advantage of allowing the free leg to swing through a great range of movement at take-off, and enables the jumper to throw a body-part over the bar before the centre of gravity reaches its maximum height. At very acute angles, the effective spring may be reduced and the jumper travels too far along the bar, increasing the risk of knocking off the bar.