We all know that the different well known effects of forces 4 come into play as a result of
the mutual interaction of two entities. The manifold effects of forces include a change in the speed of
the objects on which the force acts. It turns out that the energy associated with a moving object,
goes up by a factor of four, when its speed doubles, it goes up by a factor of nine when the speed
goes up by a factor of three and when it goes up by a factor of sixteen the speed goes up by a factor
of four.A force, acting on a surface also exerts a pressure on it and this pressure is dependent on
the area over which the force acts perpendicularly also there is one special kind of force which, in
general always tends to slow down a moving object.
4
(a) What do you mean by pressure?
(b) By what factor will the energy of a moving object go up if its speed increases by a factor of 6?
(c) A given force ‘F’ is acting parallel to a long plane surface of area ‘A’. How much pressure
does this force exert on this plane surface?
(d) How does an applied force changes the speed of an object?
please answer fast
Answers
Answer:
We all know that the different well known effects of forces 4 come into play as a result of
the mutual interaction of two entities. The manifold effects of forces include a change in the speed of
the objects on which the force acts. It turns out that the energy associated with a moving object,
goes up by a factor of four, when its speed doubles, it goes up by a factor of nine when the speed
goes up by a factor of three and when it goes up by a factor of sixteen the speed goes up by a factor
of four.A force, acting on a surface also exerts a pressure on it and this pressure is dependent on
the area over which the force acts perpendicularly also there is one special kind of force which, in
general always tends to slow down a moving object.
4
(a) What do you mean by pressure?
(b) By what factor will the energy of a moving object go up if its speed increases by a factor of 6?
(c) A given force ‘F’ is acting parallel to a long plane surface of area ‘A’. How much pressure
does this force exert on this plane surface?
(d) How does an applied force changes the speed of an object?
please answer fast
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