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How are momentum and impulse calculated?

Answer 1

Charlotte Aaron

#rho=summv#

#∫Fdt=Δρ+C#
#ρ=J+ρ_("initial")#

#J=∫_0^tFdt#

Multiply all the masses by the corresponding velocities, then take the total of those.

In terms of units: #∫Fdt=kg*m/s^2*s=(kg*m/s)# this is momentum

#J, "impulse"=∫_0^tFdt#, because this is solely the change in momentum rather than the final.

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Answer 2

Julia Aguilar

Momentum is calculated by multiplying an object's mass by its velocity. Impulse is calculated by multiplying the force applied to an object by the time over which the force is applied. Mathematically, momentum (p) is calculated as p = m * v, where m is mass and v is velocity. Impulse (J) is calculated as J = F * Δt, where F is force and Δt is the change in time.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.