Hi, the answer for this question is element!
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~Nate
Answer:
1.15 m/s
Explanation:
Part of the question is missing. Found the missing part on google:
"1. A hanging mass of 1500 grams compresses a spring 2.0 cm. Find the spring constant in N/m."
Solution:
First of all, we need to find the spring constant. We can use Hooke's law:
where
is the force applied to the spring (the weight of the hanging mass)
x = 2.0 cm = 0.02 m is the compression of the spring
Solving for k, we find the spring constant:
In the second part of the problem, the spring is compressed by
x = 3.0 cm = 0.03 m
So the elastic potential energy of the spring is
This energy is entirely converted into kinetic energy of the cart, which is:
where
m = 500 g = 0.5 kg is the mass of the cart
v is its speed
Solving for v,
Answer:
Friction force on the ground is 488.6 N
Explanation:
As we know that the force of reaction which is along the horizontal surface in tangential direction is known as Friction force while other perpendicular component of the force is Normal force
Here we know that force is inclined at 20 degree with the horizontal
so we have
here we know
F = 520 N
so we have