How the forces makes effect on the state of motion of an object ? Plz ans fast urgent

Physics

1 answer:

Ksju [112]3 years ago

6 0

Answer:

1. It may change the direction of an object in motion.

2. It may cause change in velocity of an object in motion.

Explanation:

1.It may change the direction of an object in motion.

When an object is in motion,an applied force on that object may change its direction.

For example, a sailboat moving eastward, can suddenly change its direction by interaction of a storm wind blowing form the south.

2. It may cause change in velocity of an object in motion .

A force applied to an object in motion can increase or decrease its speed. When the force is applied to the object in motion in the direction of that object, its velocity may increase.

On the other hand, when the force is applied in the opposite direction to the object in motion, its velocity may reduce.

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Three events are observed at a baseball game: I. A baseball is thrown by a pitcher. It starts from rest and is traveling at 38 m

SashulF [63]

Answer:

III. A baseball is traveling at 38 m/s when it hits a wall and bounces away from the wall at -38 m/s

Explanation:

The change in momentum of the baseball is a function of its change in velocity. And can be shown mathematically as;

∆p = m (∆v)

Where ∆p change in momentum

m mass of baseball

∆v change in velocity

Which implies that the higher the change in velocity of the baseball the higher the change in momentum.

I) ∆v = 38 - 0 = 38m/s

II) ∆v = 0 - 38 = -38m/s

III) ∆v = -38-38 = -76m/s

Therefore the third event have the highest change in velocity and thus have the highest change in momentum.

8 0

4 years ago

The basic concept of how a simple motor works is explained by which statement?

Virty [35]

When current is flowing through the conductor that is placed in a magnetic field there is a force acting on the conductor. This force is called the Lorentz force, and in fact, whenever you have a charge moving in the magnetic field there is a force acting on it that is perpendicular to its motion. Lorentz force is very interesting as it does not change the speed of the charge only its direction.
In a conductor, there is a constant motion of electrons and if you put them in the magnetic field you get the force.
Electromotor always has a static part, which is just a permanent magnet, and it has the conductor. I attached a sketch of a very simple electromotor.
If you trace the current along the conductor you will notice that for some part it is moving away from you and for some part, it is moving towards you. Because of this the forces on opposite sides of the conductor act in the opposite directions and create the torque that makes the conductor rotating.
The basic statement could be something like this:
When there is a current flowing through the conductor it acts as a magnet. If you put that conductor in the permanent magnetic field there will be a force that acts on it. If you carefully arrange the shape of the conductor you can achieve continual motion.