What does a water wave transfer
2 answers:
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The force of friction is 300 N
Explanation:
We can solve the problem by applying Newton's second law of motion: in fact, the net force acting on an object is equal to the product between the mass of the object and its acceleration. So we can write
where
is the net force acting on the object
m is its mass
a is its acceleration
For the cart in this problem, we have two forces acting on it:
- The force of push, F = 500 N, forward
- The force of friction, , backward
So Newton's second law can be rewritten as
where
m = 50 kg
is the acceleration of the cart
And solving for , we find the force of friction:
Learn more about force of friction:
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<h2>Answer:g=9.79
,A object of mass 
at the surface of earth experiences a force 
</h2>
Explanation:
Let be the mass of earth.
Let be the radius of earth.
Let be the universal gravitational constant.
Given,
Let be the acceleration due to gravity.
Then,
A object of mass at the surface of earth experiences a force