Answer:
Upward direction.
The friction is kinetic friction
The expression for the frictional force between the sled and the ground is:

where

is the coefficient of friction, m is the mass of the object and

is the gravitational acceleration.
The friction force in our problem is F=80.85 N. The mass of the object is m=15 kg. Re-arranging the formula, we can find the value of k:
1) v = gt = 10*1.5 = 15 m/s
2) r = gt^2 /2 = 10*(1.5)^2 / 2 = 11.25 meters
Answer:
-12.12
Explanation:
i just added them together and it worked.
Answer:
660V
Explanation:
V=IR
V=11×60
=660V
hope this helps
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