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Muscular power is one's ability to produce maximum muscular strength (force) in the shortest time. In other words, power means one's capacity of work output per unit of time. Mathematically, Power = Force x distance /Time or Work done/Time or Power =Force x Velocity, because Force x distance =Work done and Distance/Time =Velocity In vertical Jumping, power is given by Body weight x Distance / Time Where distance is equal to jump performance of the subject. In general, power describes the speed of movement of force along with the direction of movement.

Thus, power tells one's speed of performing work. In sports, we often come across the term 'explosive power' required in performing certain instant activities like high jump,shot-put, sprints in athletics, and calisthenics in individual sportive activities. Such instant power production is relatively unimportant in some sports activities like marathon running, long distance running, long distance swimming and pure skill-based events.

Keeping in view the above description, power may be defined in many different ways. For instance - Power is defined as "work dope per second" and Power may be defined as product of force and velocity."

Q) What describes the speed of movement of force along with the direction of movement?