When a tan stasrts, the head of a standing passenger seems to be pushed backward. Analyse the situation from the ground frame. Does it really go backward? Coming back to the train frame, how do you explain the backward movement of the head on the basis of Newton's laws?

When a train starts, the head of a standing passenger seems to be pushed backward. Analyze the situation from the ground frame. Does it really go backward? Coming back to the train frame, how do you explain the backward movement of the head on the basis of Newton's laws?

When a train starts, the head of a standing passenger seems to be pushed backward. Analyze the situation from the ground frame. Does it really go backward? Coming back to the train frame, how do you explain the backward movement of the head on the basis of Newton's laws?

When a bus at rest starts motion suddenly. passengers standing in it are pushed backward. It is an illustration of Newton's ......... law of motion. (first,second,third)

(a) State Newton's third law of motion and give two examples to illustrate the law. (b) Explain why, when a fireman directs a powerful stream of water on a fire from a hose pipe, the hose pipe tends to go backward.

Read the following passages carefully and answer the questions that follow. "Why did you keep away yesterday?" asked the head master, looking up. Swaminathan's first impulse was to protest that he had never been absent. But the attendance register was there. "No-No-I was stoned. I tried to come, but they took away my cap and burnt it. Many strong men held me down when I tried to come... When a great man is sent to gaol... I am surprised to see you a slave of the Englishmen... Didn't they cut off - Dacca Muslin - Slaves of Slaves ..........". These were some of the disjoined explanations which streamed into his head and which, even at that moment, he was discreet enough not to express. He wanted to mention a headache, but he found to his distress that others beside him had one. The head master shouted, “won't you open your mouth?" He brought the cane sharply down on Swaminathan's right shoulder. Swaminathan kept staring at the head master with tearful eyes, massaging with his left hand the spot, where the cane was laid. “I will kill you if you keep on staring without answering my question," cried the head master. "I-I- couldn't come," stammered Swaminathan "Is that so? Asked the head master and turning to a boy said, bring the peon". Swaminathan thought "What I is he going to ask the peon to thrash me? If he does any such thing, I will bite everybody dead". "The peon came. The head master said to him, 'now say what you know about this rascal on the desk," The peon eyed Swaminathan with a sinister look, grunted and demanded, "Didn't I see you break the panes ?" "Of the ventilators in my room?" added the head master with zest. Here, there was no chance of escape. Swaminathan kept staring foolishly till he received another whack on the back. The head master demanded what the young brigand had to say about it. The brigand had nothing to say. It was a fact that he had broken the panes. They had seen it. There was nothing more to it. He had unconsciously become defiant and did not care to deny the charge. When another whack came on his back, he ejaculated," don't beat me, Sir. It pains." This was an invitation to the head master to bring down the cane four times again. He said, "keep standing here, on this desk, staring like an idiot, till I announce your dismissal". The head master's reaction to Swami's pleading is

Read the following passages carefully and answer the questions that follow. "Why did you keep away yesterday?" asked the head master, looking up. Swaminathan's first impulse was to protest that he had never been absent. But the attendance register was there. "No-No-I was stoned. I tried to come, but they took away my cap and burnt it. Many strong men held me down when I tried to come... When a great man is sent to gaol... I am surprised to see you a slave of the Englishmen... Didn't they cut off - Dacca Muslin - Slaves of Slaves ..........". These were some of the disjoined explanations which streamed into his head and which, even at that moment, he was discreet enough not to express. He wanted to mention a headache, but he found to his distress that others beside him had one. The head master shouted, “won't you open your mouth?" He brought the cane sharply down on Swaminathan's right shoulder. Swaminathan kept staring at the head master with tearful eyes, massaging with his left hand the spot, where the cane was laid. “I will kill you if you keep on staring without answering my question," cried the head master. "I-I- couldn't come," stammered Swaminathan "Is that so? Asked the head master and turning to a boy said, bring the peon". Swaminathan thought "What I is he going to ask the peon to thrash me? If he does any such thing, I will bite everybody dead". "The peon came. The head master said to him, 'now say what you know about this rascal on the desk," The peon eyed Swaminathan with a sinister look, grunted and demanded, "Didn't I see you break the panes ?" "Of the ventilators in my room?" added the head master with zest. Here, there was no chance of escape. Swaminathan kept staring foolishly till he received another whack on the back. The head master demanded what the young brigand had to say about it. The brigand had nothing to say. It was a fact that he had broken the panes. They had seen it. There was nothing more to it. He had unconsciously become defiant and did not care to deny the charge. When another whack came on his back, he ejaculated," don't beat me, Sir. It pains." This was an invitation to the head master to bring down the cane four times again. He said, "keep standing here, on this desk, staring like an idiot, till I announce your dismissal". The title of the passage can be

Read the following passages carefully and answer the questions that follow. "Why did you keep away yesterday?" asked the head master, looking up. Swaminathan's first impulse was to protest that he had never been absent. But the attendance register was there. "No-No-I was stoned. I tried to come, but they took away my cap and burnt it. Many strong men held me down when I tried to come... When a great man is sent to gaol... I am surprised to see you a slave of the Englishmen... Didn't they cut off - Dacca Muslin - Slaves of Slaves ..........". These were some of the disjoined explanations which streamed into his head and which, even at that moment, he was discreet enough not to express. He wanted to mention a headache, but he found to his distress that others beside him had one. The head master shouted, “won't you open your mouth?" He brought the cane sharply down on Swaminathan's right shoulder. Swaminathan kept staring at the head master with tearful eyes, massaging with his left hand the spot, where the cane was laid. “I will kill you if you keep on staring without answering my question," cried the head master. "I-I- couldn't come," stammered Swaminathan "Is that so? Asked the head master and turning to a boy said, bring the peon". Swaminathan thought "What I is he going to ask the peon to thrash me? If he does any such thing, I will bite everybody dead". "The peon came. The head master said to him, 'now say what you know about this rascal on the desk," The peon eyed Swaminathan with a sinister look, grunted and demanded, "Didn't I see you break the panes ?" "Of the ventilators in my room?" added the head master with zest. Here, there was no chance of escape. Swaminathan kept staring foolishly till he received another whack on the back. The head master demanded what the young brigand had to say about it. The brigand had nothing to say. It was a fact that he had broken the panes. They had seen it. There was nothing more to it. He had unconsciously become defiant and did not care to deny the charge. When another whack came on his back, he ejaculated," don't beat me, Sir. It pains." This was an invitation to the head master to bring down the cane four times again. He said, "keep standing here, on this desk, staring like an idiot, till I announce your dismissal". According to the peon, Swami had