What Formula Determines Average Velocity During Impact?

In summary, a 70 kg boy jumps from a 3 meter high tree with a velocity of 7,68 m/s and an impulse of 536,7kg*m/s. To find the average velocity during impact, the formula vave. = (v1 + v0)/2 can be used, assuming acceleration is constant. Additionally, it should be noted that weight is a force and has units of Newtons, so the boy's weight may actually be 700N with a gravitational acceleration of 10ms-2.
  • #1
Atilla1982
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A boy with a weight of 70 kg jumps down from a 3 meter high tree. His velocity on impact I have found to be 7,68 m/s and the impulse is 536,7kg*m/s. Now I need to find the average velocity during impact. What formula do I have to use?
 
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  • #2
What's the definition of average velocity?
 
  • #3
I suppose, if acceleration is constant, then:

vave. = (v1 + v0)/2

An important point I'd like to raise here:

Weight is a force, therefore it has the units of Newtons. Obviously the man doesn't have a mass of 7kg so I can only assume the his weight is 700N (with g = 10ms-2).

Regards,
Sam
 

FAQ: What Formula Determines Average Velocity During Impact?

What is average velocity during impact?

Average velocity during impact refers to the average speed and direction of an object as it collides with another object or surface.

How is average velocity during impact calculated?

To calculate average velocity during impact, the change in velocity (final velocity - initial velocity) is divided by the change in time (final time - initial time). This results in a vector quantity with direction and magnitude.

Why is average velocity during impact important?

Average velocity during impact is important because it helps us understand the forces and energy involved in a collision. It also allows us to predict the amount of damage or deformation that may occur.

Does average velocity during impact depend on the mass of the objects involved?

Yes, the average velocity during impact is affected by the mass of the objects involved. Objects with greater mass will have a lower average velocity during impact compared to objects with less mass, assuming all other factors remain constant.

Is average velocity during impact the same as instantaneous velocity during impact?

No, average velocity during impact is the average speed and direction over a period of time, while instantaneous velocity during impact refers to the speed and direction at a specific moment during the impact. They are calculated differently and may not necessarily be the same value.

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