To solve this problem we will apply the concepts related to kinetic energy and the value of momentum. Both variables are dependent on the mass and velocity of the object. By dividing between the two terms we can clear the speed of the object and find its value. Let's proceed to define the kinetic energy, for which,
Here,
m = mass
v = Velocity
The expression of momentum of a object is given as
If we divide two expression we have that
Rearrange to find the velocity we have that
Replacing we have that
Therefore the speed of the object is 23.68m/s
It is called a rock stall
Combustion of wood
Metal rusting
The acceleration of gravity is 9.8 m/s². That means that the speed of the marble is always 9.8 m/s greater downward than it was 1 second earlier.
You want to know when the marble is going to stop climbing. Well, that
will be when its upward velocity has dwindled to zero. That in turn is the
time when its upward velocity is 1.3 m/s less than it was when you tossed it.
(1.3 m/s) / (9.8 m/s²) = 0.133 second (rounded)