Impact Force
Impact Force
The impact force is a force of very high magnitude acting for a short period of time. A high velocity collision is an example of an impact force. Usually when a collision occurs at low velocity, the force generated during the time taken by the object to come to rest will be less and hence it dissipates a lot of energy through vibrations and deformation. But when the collision occurs at a very high velocity the force generated during the time taken by the object to come to rest will be very large and this is impact force, the time is not sufficient for these vibrations or deformation to occur. So under a high impact force, materials break rather than deform. As you can see in a highway accident. So an impact force causes more damage than smaller force acting for a longer duration.
In the image above the car moving with high velocity hit the wall in the front and get deformed. This occur due to the high impact force.
When a hammer strikes a nail, the high velocity impact force tends to drive in the nail since there is no time for friction to act. Note that here the motion starts before the friction takes effect. To reduce the impulse of an impact force, we will have to extend the time of action of force.
A high velocity collision is an example of an ___________________ . | |||
| Right Option : B | |||
| View Explanation | |||
Impulse has the same unit as: | |||
| Right Option : A | |||
| View Explanation | |||
Under high impact force , materials break rather than deform because __________________.
| |||
| Right Option : C | |||
| View Explanation | |||
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8thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
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10thIn terms of methodology I want to say that institute provides expert guidence and results oriented monitering supplements by requsite study material along with regular tests which help the students to improve their education skills.The techniques of providing education helps the students to asses...
