impulse
Suppose that F is the total force acting on a particle of mass m. From Newton's second law of motion in the form F = (d/dt)(mv), it follows that the impulse J is equal to the change in the linear momentum of the particle.
If the force F is constant, then J = F(t2−t1). This can be stated as ‘impulse = force×time'.
The concept of impulse is relevant in problems involving collisions.
Impulse has the dimensions MLT−1, and the SI unit of measurement is the kilogram metre per second, abbreviated to kgms−1.
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- antecedent
- anti-
- anticlastic
- anticlockwise
- antiderivative
- antidifferentiate
- antilogarithm
- antiparallel
- antipodal points
- antiprism
- anti-realism
- antisymmetric matrix
- antisymmetric relation
- aperiodic
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- Apollonius' circle
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- applied mathematics
- approximate