For the part a) we need only the momentum of the box and we have the data to find it.
Momentum is given by,

where clearly, p is the momentum, m the mass of the box and v is the velocity.
Substituting,

For part b) we need an analysis of the situation. We understand that the box on a surface that has no friction will continue to rotate at the same speed previously defined. The box can only stop with friction, so,

<em>It is the same that part a)</em>
Add them together with south being negative. (-350 + 25) to get 325 south
Answer:
April 24, 1990 is the answer
Answer:
Acceleration = (change in speed) / (time for the change)
Change in speed = (ending speed) - (beginning speed)
= (3,600 mi/hr) - ( 0 )
= 3,600 mi/hr
= same as 1 mile/second.
Acceleration = (1 mi/sec) / (10 sec)
= 0.1 mi/sec² .
But 1 mile = 5,280 ft,
so
0.1 mi/s² = 528 ft/s²
Explanation:
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