Hello everyone! Today we start a new exercise. It’s “A crash test car of mass 1,000 kg moving at constant speed of 12 m/s collides completely inelastically with an object of mass Mat time t = 0. ” Let’s follow along to find out the answer!

Question: A crash test car of mass 1,000 kg moving at constant speed of 12 m/s collides completely inelastically with an object of mass Mat time t = 0.

We have the following question:

Answer

We can describe the question as follows:

and we have:

Here is answer for question a:

Answer for question b:

Answer for question c:

And d:

Relevent knowledge

The formula for gravitational potential feature would be:
Wt= m.g.z.
In there:
Wt: Potential energy of the object at position z, unit of measure is Jun (J)
m: Is the mass of the object (kg)
z: Is the height of the object above the ground
The salient feature of gravitational potential energy is that it is a scalar quantity, which can range from >0=0 or <0. The change in potential energy and work of gravity is when an object begins to move from position A to position B. The work of gravity of the object will be calculated by the difference in potential energy of gravity at the 2 locations. Formula: AAB = Wt (in A) – Wt (in B)

Conclusion

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