Isaac Newton was an English physicist who lived in the mid 1600s to the early 1700s. Newton stated that all objects are attracte
2 answers:
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Answer:
Displacement: 6.71 m, Direction: 63.4 degrees north of east
Explanation:
In the attached image we can aprecciate each one of the movements of the parade. Let's say that the parade started from the origin (point (0,0)) then it moves to the east 4 blocks it means now the parade is located at point (4,0).
Then the parade went to the south three blocks, so it moves to the coordinate (4,-3). After this the parade went to the west one block so the new coordinate point is (3, -3).
And finally the movement of the 0 parade was 9 blocks to the north. It means the final point is now (0,9) - (3,-3) = (3,6)
And the displacement will be defined by the folliwing vector operation:
We know that the magnitude of the displacement vector is defined by the phytagoras theorem
And the angle will be defined by:
tan(beta)=3/6
beta = tan^-1(6/3)
beta = 63.43°
Answer:
Explanation:
Given
mass of object
kinetic Energy
Tension in string
mass is moving in a horizontal circle so tension is providing the centripetal acceleration
therefore
where r=radius of circle
kinetic energy of particle
divide 1 and 2 we get