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Complete Question
The complete question is shown on the first uploaded image
Answer:
the compass direction of the resultant displacement is south of west
Explanation:
Generally using cosine we can obtain the resultant R as follows
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We can obtain the direction of the resultant by first using sine rule to obtain angle C as follows
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=>
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Then the direction is obtained as
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Hence the compass direction of the resultant displacement is south of west
The elastic potential energy stored in a spring is given by:
where k is the spring constant, and x=0.5 is the compression of the spring. Re-arranging the formula and using E=5 J, we find the spring constant: