Find the slope of the line that passes through the points (-1, 3) and (2, -5)-
2 answers:
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Answer:
Force on the object is 20 N
Explanation:
As we know that work done to raise the book from initial position to final position is known as potential energy stored in it
So here we know that
here we know that
U = 30 J
s = displacement = 1.5 m
so we have
Answer:
The required force is 55.38 N.
Explanation:
First we have to find the spring constant K;
k = =
= 553.846 N/m
As,
F= -K
or, F= - 553.846 × 0.10
or, F= -55.3846 N
Hence,
= -
∴ = 55.38 N
The required force to stretch it by this amount is 55.38 N.