If an object is not accelerating what can you determine about the sum of all the forces on the object
1 answer:
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The amount of potential energy the block contains is 2,822.4 Joules
<u>Given the following data:</u>
- Mass of block = 12 kg
- Height of platform = 24 meters.
We know that the acceleration due to gravity (g) of an object on planet Earth is equal to 9.8 .
To determine the amount of potential energy the block contains:
Mathematically, potential energy (P.E) is given by the formula;
Where:
- m is the mass of object.
- g is the acceleration due to gravity.
- h is the height of an object.
Substituting the parameters into the formula, we have;
Potential energy (P.E) = 2,822.4 Joules
Read more: brainly.com/question/23153766
The momentum of the 155 kg car afterwards is 469.7 kg m/s to the right
Explanation:
We can solve the problem by using the law of conservation of momentum: the total momentum of the system is conserved before and after the collision, so we can write:
where:
is the mass of the bumper car
is the initial velocity of the bumper car (we take the right as positive direction)
is the final velocity of the bumper car
is the mass of the second bumper car
is the initial velocity of the second car (moving to the left)
is the final velocity of the second car
Solving for ,
where the positive sign means the direction is to the right.
And now we can find the momentum of the 155 kg afterwards, which is
(to the right)
Learn more about momentum:
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