If an object has a mass of 50 kg and is accelerating at 2m/s/s, what is the force it will exert?
1 answer:
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Answer:
The x component of the x axis is:
The y component of the y axis is:
The magnitude is given by:
The direction is given by:
See the graphical magnitude and direction below.
Explanation:
The x component of the x axis is:
The y component of the y axis is:
The magnitude is given by:
The direction is given by:
Answer:
The kinetic energy of the system after the collision is 9 J.
Explanation:
It is given that,
Mass of object 1, m₁ = 3 kg
Speed of object 1, v₁ = 2 m/s
Mass of object 2, m₂ = 6 kg
Speed of object 2, v₂ = -1 m/s (it is moving in left)
Since, the collision is elastic. The kinetic energy of the system before the collision is equal to the kinetic energy of the system after the collision. Let it is E. So,
E = 9 J
So, the kinetic energy of the system after the collision is 9 J. Hence, this is the required solution.