Physical science
posted by Boitumelo ingrid makopole
State the mathematical relationship between the net force acting on an object and the time taken to change the objects momentum

Damon
F = d/dt (mv)
in other words force is rate of change of momentum (in the special case of constant mass this is F = m a)
so
F * change in time = change of momentum
This is usually called "impulse".
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