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calculate aceleration- a student pushes on a 5-kg box with a force of 20 N forward. the force of sliding friction is 10 N backward. what is the acceleration of the box??
Answers
Answer:
The acceleration of the box is 2m/s2.
Explanation:
From the above question we have to calculate acceleration- a student pushes on a 5-kg box with a force of 20 N forward. the force of sliding friction is 10 N backward. what is the acceleration of the box??:-
here the knowledge of forces and acceleration with newtons first law is needed.
In physics, a force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity (e.g. moving from a state of rest), i.e., to accelerate. Force can also be described intuitively as a push or a pull. and
Putting Newton’s 1st law of motion in simple words, a body will not start moving until and unless an external force acts on it. Once it is set in motion, it will not stop or change its velocity until and unless some force acts upon it once more. The first law of motion is sometimes also known as the law of inertia.
There are two conditions on which the 1st law of motion is dependent:
Objects at rest: When an object is at rest, velocity (v = 0) and acceleration (a = 0) are zero. Therefore, the object continues to be at rest.
Objects in motion: When an object is in motion, velocity is not equal to zero (v ≠ 0), while acceleration (a = 0) is equal to zero. Therefore, the object will continue to be in motion with constant velocity and in the same direction.
The force applied is 20N and the oppositional force which is the frictional force is 10N.
Implies the net force is 20-10= 10N.
And now Force=mass*acceleration.
10N = 5kg box into the acceleration:-
Solving gives that the acceleration is 2m/s2.
Answer:-The acceleration of the box is 2m/s2.
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