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NISA [10]
2 years ago
15

the velocity of a curling stone is due east. what will be the direction of the momentum of the curling stone as it moves?

Physics
2 answers:
kirill [66]2 years ago
8 0
East.
momentum = mass x velocity
the direction of the momentum is the same as that of velocity.
7nadin3 [17]2 years ago
7 0

Answer: to east.

Explanation: Momentum is the "amount of movement" and can be written as:

P = m*v

where P is momentum, m is the mass of an object moving and v is the velocity of the object.

As you may know, the velocity is a vector and the mass is a scalar, so the momentum must be also a vector, that has the same direction that the vector of velocity, so if the velocity of the rock points to the east, also does the momentum.

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Answer:

630.75 j

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from the question we have the following

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acceleration due to gravity (g) = 9.8 m/s^2

work done (wd) = ?

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wd + mgh = (0.5 mVf^2) - (0.5 mVi^2) + (FF x  d)

wd = (0.5 mVf^2) - (0.5 mVi^2) + (FF x  d) - (mgh)

where wd = work done

m = mass

h = height

g = acceleration due to gravity

FF = frictional force

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Vf and Vi = final and initial velocity

wd =  (0.5 x 54.5 x 6.9^2) - (0.5 x 54.5 x 1.4^2) + (41 x 12.4) - (54.5 X 9.8 X 2.1)            

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