1. what do you understand by the kinetic energy of a body.
2. a body is thrown vertically upwards. its velocity goes on decreasing. what happens to ita kinetic energy as its velocity becomes zero
3. a horse and a dog are running with the same speed. if the weight of the horse is ten times that of a dog, what is the ratio of their kinetic energies.
answer to your question:
❤Kinetic energy of a body is defined as the energy possessed by it due to its motion.
Hope it helps ^_^
When an object is released from the hand, and is not touching any other object, its Total Energy will remain constant within itself.
The types of energy related with motion are Kinetic Energy and Potential Energy. Potential Energy is the amount of energy when the object is not moving, and Kinetic Energy is the amount of energy when the object is moving.
When you throw the ball, and the ball leaves your hand: from that point onwards, the Total Energy will not be able to change. Energy is only converted between different forms.
So, as soon as the ball reaches the highest point, its Kinetic Energy will be zero at that moment, because it stops moving (velocity = 0). Remember we said that Total Energy cannot be changed (until it hits something)? So, if KE is zero, and Total Energy is constant, then it means that all the energy is converted to Potential Energy. That is your answer. See, it is very simple!
Important points/concepts to remember:An object's total energy will be constant until it hits something.The types of energies related to Motion are: Potential Energy and Kinetic Energy.Potential Energy + Kinetic Energy = Total EnergyIf one is zero, then the other will be equal to the total energy.
Heya here is ur answer..
When a balloon is thrown vertically upward, it's velocity goes on decreasing and it's potential energy as it's velocity becomes zero goes on increasing.
Hope it helps u..
it become highest
as the object gain height its P.E. become highest.P.E. =mgh .There is no work of the velocity in P.E.
It is given that the velocity becomes zero .
So , K.E. = ½mv² = ½*m*0² = 0
So , The kinetic energy of the body will be zero when it's velocity becomes zero
It's potential energy will be maximum because when it reaches at max. height it's velocity will be 0 and we know that
The energy possess by the body due to virtue of its shape or height is called potential energy.
Kinetic Energy will get converted in Potential Energy. At the highest point its KE will be zero
potential energy become maximum [at top] when velocity become zero
I hope it will help you
Potential energy will be maximum when the velocity of balloon becomes zero.
The Potential energy in that ball turns into kinetic energy i.e.
Speed at which ball falls=kinetic energy+gravitational energy
here is your answer dear.
as the value 'hv' increases i.e. the energy of incident light and hence frequency increases, so kinetic energy of emitted electron increases. but the number of electrons emitted per unit area doesn't change as it is determined by intensity of light and not frequency.
2. a body is thrown vertically upwar...