Impulse from croquet mallete problem

in10sivkid

A croquet mallete delievers an impulse of 8.83 N*s to a .44 kg croquet ball initally at rest. what is the speed of the ball immediately after being struck?

ok so I = Ft = change in momentum

and they give us just a mass...

so that would help with p = mv to find velocity...

but this problem seems there are two unknowns i would either need to know the force or the time...but they don't give us either...

help?

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StatusX

Homework Helper
all you need is the velocity, and you have I.

in10sivkid

ok...how does having impulse help me with finding velocity

OlderDan

Homework Helper
in10sivkid said:
ok...how does having impulse help me with finding velocity
The impulse is the change in momentum, and the initial momentum is zero. Momentum is mass times velocity. You know the mass.

in10sivkid

ok so essentially then then impulse = momentum since the initial momentum = 0

so 8.83 N*s = (.44 kg) * V

then solve for V...??
if so wow that was kinda easy

OlderDan

Homework Helper
in10sivkid said:
ok so essentially then then impulse = momentum since the initial momentum = 0

so 8.83 N*s = (.44 kg) * V

then solve for V...??
if so wow that was kinda easy
Looks good. Some of them are easy Physics Forums Values

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