Velocity includes direction, for instance going 140 MPH is speed but going 140 MPH North is velocity
Maybe this can help:
https://blogs.bu.edu/ggarber/interlace/pendulum/energy-in-a-pendulum/
Answer:
Explanation:
Given that,
g = 31 ft/s²
For every 1 lbf force, the compression is 1in
Then we can know the spring constant.
From Hooke's Law
F = Kx
K = F/x
K = 1/0.14
K = 7.143 lbf/in
Now, if the spring deflection is 1.8in
Then, the force applied is
F = kx
F = 7.143 × 1.8
F = 12.857 lbf
Now, this force is equal to the weight of the body
And weight of the body can be determined using.
W = mg
Therefore,
m = W/g
m = 12.857 / 31
m = 0.415 lb
The mass of the object is 0.415 pounds
The answer will be C based on what I had researched
Answer:
Fr = 26.83 [N]
Explanation:
To solve this problem we must use the Pythagorean theorem, since the forces are vector quantities, that is, they have magnitude and density. Therefore the Pythagorean theorem is suitable for the solution of this problem.