Answer:
<u>Rigid bodies:</u> Options d and e
<u>Rigid bodies' system:</u> options f, g and h
<u>Non-rigid bodies:</u> Options a, b and c
Explanation:
The above classification of the mentioned objects into rigid bodies, non rigid bodies and system of rigid bodies can be explained as :
Rigid body: A body which does not undergo any change in its form or shape on application of externally applied load or force is said to be a rigid body.
System of Rigid bodies:
A system of rigid bodies is different from any other element system as in this the bodies constituting the system must be rigid bodies.
Non-rigid bodies:
A body which undergoes a change in its form or shape on application of externally applied force or load is said to be a non-rigid body.
Answer:
physical change
Explanation:
its a physical change because its still soda it hasn't changed into anything else than what it already is
Answer:
Explanation:
A free-body diagram is a sketch of an object of interest with all the surrounding objects stripped away and all of the forces acting on the body shown. The drawing of a free-body diagram is an important step in the solving of mechanics problems since it helps to visualize all the forces acting on a single object. The net external force acting on the object must be obtained in order to apply Newton's Second Law to the motion of the object.
A free-body diagram or isolated-body diagram is useful in problems involving equilibrium of forces.
Free-body diagrams are useful for setting up standard mechanics problems.
Answer:
if the old force is F, the new force is F/9
Explanation:
Recall that the Coulomb force between to charges is inversely proportional to the square of the distance between the charges.
Therefore, if the original distance "d" changes now to be "3d" (tripled), the denominator of the force expression will change from:
thus reducing the original force by a factor 1/9
So if the old force is F, the new force is F/9
Answer:
Explanation:
I am sitting on a train car traveling horizontally at a constant speed of 50 m/s. I throw a ball straight up into the air. Before , the ball gets separated from my hand , both me the ball will be moving with velocity of 50 m /s in horizontal direction .
As soon as ball is separated from the hand , it acquires addition velocity in upward direction and acceleration in downward direction . This will give relative velocity to the ball with respect to me . So I will see the ball going in upward direction under gravitational acceleration . It appears as if I am sitting at rest and ball is going in upward direction under deceleration . My motion at 50 m/s will have no effect on the motion of ball in upward direction , according to first law of Newton . It is so because ball too will be moving in forward direction with the same speed which will not be visible to me because I too am moving with the same speed.
If I am sitting at rest at home and I threw a ball straight up into the air , I will have the same experience of seeing ball going in similar way as described above.
