Question

Need your help..... army plz solve these questions..... ​

Answer 1

Answer:

question 1:

Meaning When the forces exerted on the object, are of equal size but in opposite direction, then the forces are known as balanced forces. When the forces applied on the object are unequal in size, then the forces are known as unbalanced forces.

question 2:

Force can bring the following changes: It can stop a moving body, move a stationery body, change shape of the body, alter the speed of the body, change the direction of motion of the body.

question 3:

When a motor car makes a sharp turn we tend to move towards one direction because of inertia. The inertia of our body tends to resist the movement of the motor car and this leads us getting thrown to one side.

question 4:

A man jumping out from a moving bus holds the inertia of motion. As the man lands on the ground, feet come to rest instantly while the upper part of the body continue to move due to inertia of motion. ... So, it is very dangerous to jump out of a moving bus.

question 5:

While catching a fast moving cricket ball, a fielder in the ground gradually pulls his hand backward with the moving ball, In doing so, the fielder increases the time during which the high velocity of the moving ball decrease to zero.

question 6:

In a high jump athletic event, the athletes are made to fall either on a cushioned bed or on a sand bed. This is to increase the time of the athlete's fall to stop after making the jump. This decreases the rate of change of momentum and hence the force.

question 7:

A karate master can break a pile of? tiles or a slab of ice with a single blow because he strikes it very fast and in the process produces a lage momentum of his hand which is reduced to zero in a very short time when his hand strikes the tiles. this exerts a large force on the pile of tiles thus breaking it.

question 8:

The law of momentum conservation can be stated as follows. For a collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision.

question 9:

When a vehicle moves along a horizontal curved road on a mountain, the necessary centripetal force is supplied by the force of friction between the wheels of the vehicle and the surface of the road. ... Thus, to provide necessary centripetal force, mountains have an inward inclination at sharp turns.

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Answer 2

Answer:

no dear I m not sad ok leave it

what about you deR army have u voted bts