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(17) The pulses shown in the figure are traveling through string: Draw snapshot graph for the stringatt = 2.0 $. (cm) at / = 0 s ms(m) Aoms...

Question

(17) The pulses shown in the figure are traveling through string: Draw snapshot graph for the stringatt = 2.0 $. (cm) at / = 0 s ms(m) Aoms

(17) The pulses shown in the figure are traveling through string: Draw snapshot graph for the stringatt = 2.0 $. (cm) at / = 0 s ms (m) Ao ms



Answers

Figure (15-E7) shows two wave pulses at $t=0$ travelling on a string in opposite directions with the same wave speed $50 \mathrm{~cm} \mathrm{~s}^{-1}$. Sketch the shape of the string at $t=4 \mathrm{~ms}, 6 \mathrm{~ms}, 8 \mathrm{~ms}$, and $12 \mathrm{~ms}$.

In this question will understand the basic concepts of the motion. So the question is the figure shows the way publicity equals to zero And the speed is given us 10. Sentimental per second. We have to sketch the ship of the string I take was 212 and three seconds. Like So it equals to 1/2. The maximum will move by the distance of as one equals 2. Ready. That is equal to turn into one. That is 10 cm At T. equals two seconds. As to would be equal to VT. That is then multiplied by two Which is equal to 20 cm At stake. Was three seconds that they stand smoothed by. The maximum would be equal to we D. That is 30 centimeters right? So I take was 212 and three seconds. These are the distances that are moved by the maximum of the way late so we can easily draw The shape of the string. At Pentecost equals 10 cm Then 20 cm and 30 cm displacement traveled by the maximum light.

In the body of this problem we have to sketch the patron when T is equals to 5.0 milliseconds. Physicals too. 5.0 milliseconds. Then it is equals to 10 milliseconds, Then it 15 million second. And then at 20 milliseconds. Yeah. So the distance called by the pulses in the given time is In the in the given time said I'm uh to one is the one And this is equals two. We even hear this with the speed of the pulse and the Stephen is the time taken by this pulse. So the one is equal to The speed of the where which is equal to 2.0 m/s And 2 1 is equal to 5.0 multiply vitamins power minus three seconds. So the distance will be equal to 1.0 Centim. So the distance between the pulses which remains now by traveling this distance is equal to identity and delta de. And this is equal to 6.0 centimeter. The initial suppression minus two in two 1.0 cm. So we left with 4.0 cm. So the corresponding figure will be This one where we have expiration of 4.0 centim between these two pulses. The pulse is moving towards right and this one is going to what left? No it uh teach you which is equal to say 10 milliseconds. The distance covered by this pulse during this time is the two and this is equals two 2.0 multiple scanned into 10 multiple laboratories par -3 seconds. So we left with 2.0 cm expression between the pulses delta D two and this is equal to 6.0 centimeter -2 into 2.0 cm. So this is equal to set uh 2.0 cm. Now the figure will be this one where Expression between the two pulses is two cm. Now it uh A time which we call T3 and this is equals two 15 milliseconds. The distance covered by one pulses D three. And this is equal to 2.0 metropolises. Can't into 15 multiple eyewitness power -3 seconds. So here we will get 3.0 Centim. Now the suppression between the policies delta the three and this is equal to 6.0 centimeters minus two in two 3.0 Centim. So from here we will get the distance between the pulse as delta D three and this is equal to zero centimeter. Now the figure will be this one where the two pulses are live each other. Let's move to the 24 Before is equals to 20th centimeter. So the distance covered by the policy during this time will be the will be In T four. And this is equal to 2.0 media posts can into 20 multiple eyewitness bottom -3 seconds. So we will get here uh 5.0 cm now, delta D four is equal to 6.0 centimeter minus two in two 5.0 cm. So here we will get Uh minus 4.0 zero centimeter. Oh the figure will be This one where the suppression is 4.00 cm. And here the slower policies smoking away from his upper pulse. This one is moving towards the right and this one is moving towards this is moving towards supposed to fax access and this is moving towards uh negative X axis. Now let's move to part B of this problem in this problem. So at the point we're distracting difference aka the energy will be in the form of uh kinetic energy.

For part A. For the first case, it t is equal to 0.1 2nd each. Pulse will be traveling a distance off Delta X. That is a three times T. This is Ah, 10 meter per second. He's a week times the time, which is 0.1 2nd This will give us a one meter so the amplitude for a graph will be in following way. Here we have ex sexist in meters. This is a wind meters. Let's say this is the one. This is two and this is a tree. This is four and this is five, um, six and seven here. Um so it will go, um, in the following way. So we'll go here and then go up and anim platoon off a one meter and it goes straight up to four and then fall down. Um and then from here it will go down to ah Nega to to No, let's go over here 92 and yeah, Then it will rise up. Then we'll flight and up to seven here. So this polls will be traveling here in this post from traveling here. This is for musical 0.1 2nd then four part to be for the second case, AT T is equal to zero point. This is for, um I want to be for tea is equal to 0.2 seconds each. Balls will be year traveling a distance Delta X article three times Team Ah, this is again using the same procedure that we did earlier beating per second times, two seconds. This will give us a two meter. Then we can draw Are the amplitude here is a one. Here is the minus 11 Here there's 123456 This is X centimeters and this is why in the region, when the pulse will be from three will rise up, rise upto one from their flight and down straight and then down to five. This will go in this direction. This will go in this direction then for part c the graph we'll be in a following ship. So for the RC T is equal to 0.3 seconds. Distance travel Delta X will be are 10 times 0.3 seconds. This will give a stream meters. Um, here's the why in pursuit here is the XXXII meters. Why in pursuit. So he will go up to two flat in here. Then we'll go down to minus two, minus two. Here, here is the one year in ST minus one. Then it will rise up to ah, three limb from fear flattened and then go up, then travel up to or six years. So he used to six years to zero. And here's to 34 This will go in this direction and this will go in this direction. This is forties ical deserve for three seconds.

Hello. Friends as cylinder figure. The pulse are moving. Tow. Watch each other with the speed off. 10 m per second. Drop by. Ex graph showing the result Pulse Resulting pulse at quite one second. 22 seconds. 13 seconds. Let us see it. And at 0.1 2nd. See? Okay. Okay. Hey, that's all for it. Thanks for watching it.


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