A 7kg box with initial speed 12m s slides across the floor and comes to a stop after 2 4s a) What is the coefficient of kinetic friction b) How far does the box move c) You put a 5kg block in the box, so the total mass is now 12kg, and you launch this heavier box with an initial speed of 12m s alon...

a To find the coefficient of ...

A 7kg box with initial speed 12m/s slides across the floor and comes to a stop after

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A 7kg box with initial speed 12m/s slides across the floor and comes to a stop after 2.4s.
a) What is the coefficient of kinetic friction?
b) How far does the box move?
c) You put a 5kg block in the box, so the total mass is now 12kg, and you launch this heavier box with an initial speed of 12m/s along the table. How long does it take to stop?