Energy on a Vertical Toss Energy...

Energy on a Vertical Toss Energy (J) 10.0 8.0 6.0 4.0 2.0 0.0 0.0 0.5 1.0 1.5 2.0 Time (s) Total Energy Kinetic Energy Gravitational Energy (6) Explain whether changes in KE, PE, and the total energy in the graph make sense as time goes on. Explain each term separately. It will be helpful to use some specific positions as milestones, for example, the time period between the bottom and the top, and the top and the bottom when the ball returns.

Transcript

00:01 Here we know that in the case of a vertical toes, definitely the object is launched with some initial velocity.

00:13 So, here, while launching the object, the object will be having a particular value of initial velocity, that is, the initial velocity will not be zero in this case.

00:27 And thus we can say that here the object has.

00:32 Initial kinetic energy so this is the initial case now we know that as time goes on we can see that the object keeps going up so when the object keeps moving up what happens is here we know that initially it will be having some form of kinetic energy when it keeps moving this kinetic energy energy gets changed into gravitational potential energy.

01:13 Or we can say that here the kinetic energy decreases and the gravitational potential energy starts to increase when the object starts moving up.

01:28 So we know that at a particular point the object reaches its maximum height.

01:33 So what happens at the maximum height will be as follows.

01:37 At a maximum height, height we must know that there will be no kinetic energy for the object.

01:44 So at the topmost point, the object will be having zero kinetic energy because all the kinetic energy gets converted into potential energy.

01:56 So the object will be having only the potential energy.

02:00 Also, we must know that at the highest point, the potential energy will be maximum for the object.

02:08 So, this is the case.

02:12 So after that we know that after the highest point is achieved then the object falls down.

02:20 So when the object keeps moving down the change happens will be as follows.

02:26 We know that at the highest point there will be gravitational potential energy...

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