Two blocks are connected by a string over a pulley. The hanging block has a mass of 8-kg and the one on the plane has a mass of
m2. If the coefficient of static friction is .8 what is the minimum mass that m2 must be in order for the objects to be in a state of static equilibrium.
1 answer:
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Answer:
-16 kg m/s
Explanation:
Momentum is a vector quantity indicating the "amount of motion" in an object.
The change in momentum of an object is given by:
where:
m is the mass of the object
u is its initial velocity
v is its final velocity
For the water balloon in this problem, we have:
m = 0.50 kg is the mass
u = 32 m/s is the initial velocity
v = 0 m/s (since the balloon comes to a stop)
Therefore, the change in momentum is:
And the negative sign indicates that the direction is opposite to the initial velocity.