00:01
In the given question we are told to calculate the kinetic energy of a 1 times of a 1 times 10 to the power of negative 5g object which is having a velocity that is equal to the velocity of this object is given as 2 times 10 to the power of 5 cm per second.
00:30
So to find the kinetic energy of an object, what we usually use is the formula that the kinetic energy, the kinetic energy is equal to half times m times v squared, where we can write m is the mass of the object, where m is the mass of the object, where m is the mass of the object, and v is the velocity of the object mass of the object mass of the object and v denotes the velocity of the object so having this formula what we could do over here is we can see that in the question it is given that this object is a one times 10 to the power of negative 5g object so this condo over here is actually denoting the weight of this object.
01:37
It is giving us the weight of this object and the weight is usually calculated as the mass times the acceleration due to gravity.
01:49
So mg is what we usually use to find the weight of an object.
01:54
So we can write then mg, then m times g, mg, m times g, mg.
02:03
Is what is given as 1 times 10 to the power of negative 5g which means we can write m is then equal to which would be the mass of the object is equal to 1 times 10 to the power of negative 5 and we can take the unit of mass over here as kilogram itself right and now in the next case what we have is we have the velocity right so we can convert the velocity from centimeters to meters...
