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razzmatazz
razzmatazz is offline
#1
Feb13-12, 10:04 PM
P: 3
A 12 kg block is sliding to the left across the floor at a speed of 18 m/s. Opposing the
motion is a 50 N force. How far (in m) will the object travel before its speed is reduced
to 8 m/s?
(a) 21.4
(b) 31.2
(c) 18.4
(d) 7.7
(e) none of these




2. Relevant equations[/b]

lost on how to find distance tho..

K.E. = 1/2mv^2


3. The attempt at a solution
I got d but not sure...i thouhght it was d 7.68 round up
1/2mv2-1/2vi
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