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Larry Vigil and Herb Siegler were two crewmen of American and Swedish nationality respectively. They were crewmen aboard the ship wavewalker. They were extremely talented and helped the narrator to tackle the rough seas of the southern Indian Ocean.

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Give the magnitude and direction of the net force acting on a stone of mass 0.1 kg. (a) just after it is dropped from the window of a stationary train. (b) just after it is dropped from the window of a train running at a constant velocity of 36 km/h. (e) just after it is dropped from the window of a train accelerating with 1 ms, (d) lying on the floor of a train which is accelerating with 1 m s2, the stone being at rest relative to the train. Neglect air resistance throughout.

Posted by K.Kishore K.Kishore 2 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Tanishq Maheshwari 2 years, 5 months ago

(a) Given: The mass of the stone is 0.1 kg. Since the train is stationary, only the acceleration due to gravity acts in the downward direction. Newton’s second law of motion is given as, F=mg By substituting the given values in the above expression, we get F=( 0.1 kg )( 10 m/ s 2 ) =1 N Thus, a force of 1 N is acting in the downward direction. (b) Since the train is moving at constant velocity, the stone acquires only horizontal component of velocity. There is no acceleration in the horizontal direction. Only the acceleration due to gravity acts in the downward direction. Newton’s second law of motion is given as, F=mg By substituting the given values in the above expression, we get F=( 0.1 kg )( 10 m/ s 2 ) =1 N Thus, a force of 1 N is acting in the downward direction. (c) Given: The mass of the stone is 0.1 kg and the acceleration of the train is 1 m/ s 2 . As the stone is resting on the floor of the train, it experience the same acceleration as that of the train. The horizontal force acts on the stone as long as it is in the train. The horizontal force on the stone becomes zero as soon as it is dropped from the train. This is because the force at an instant doesn’t depend on the previous situations but only the situation present at that instant. Therefore, only gravitational force acts on the stone. Newton’s second law of motion is given as, F=mg By substituting the given values in the above expression, we get F=( 0.1 kg )( 10 m/ s 2 ) =1 N Thus, a force of 1 N is acting in the downward direction. (d) As the stone is at rest on the floor, it experiences the same acceleration as that of the train. The weight of the stone is balanced by the normal force applied by the floor. The force on the stone is given as, F=ma By substituting the given values in the above expression, we get F=( 0.1 kg )( 1 m/ s 2 ) =0.1 N Thus, the stone experiences force of 0.1 N in the direction of motion of the train.

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Convert decimal into binary form, 1- (5782) 2- (2432) 3- (156) 4- (565)

Posted by Nikita Panwar 2 years, 4 months ago

CBSE > Class 07 > Computer

1 answers

Harsha Vardhan 2 years, 4 months ago

89056

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What led to Akbar,s ideas on sulh-i-kul

Posted by Mannat Kaur 2 years, 5 months ago

CBSE > Class 07 > Social Science

2 answers

Vidhan Singh 2 years, 5 months ago

Bijapur and Golconda

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Joan Ida.J Ida.J 2 years, 5 months ago

2. Fill in the blanks: - The five Deccan sultanates were Berar, Kandesh Ahmadnagar, _________, and__________.

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The near point of a person suffering from hypermetropia is at 50 cm from is eye. what is the nature and power of the lens needed to correct this defect

Posted by Savitoj Kaur 2 years, 5 months ago

CBSE > Class 10 > Science

2 answers

Student Cbse 2 years, 5 months ago

The nature of lens is convex lens that is converging lens and the power is +2 diopter

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Pratyush Bidhar 2 years, 5 months ago

Use app Login Class 12 >>Physics >>Ray Optics and Optical Instruments >>Defects of Vision and Correction >>The near - point of a person suffering f Question The near-point of a person suffering from hypermetropia is at 50 cm from his eye. What is the nature and power of the lens needed to correct this defect? (Assume that the near-point of the normal eye is 25 cm). Medium Open in App Updated on : 2022-09-05 Solution Verified by Toppr The person needs a convex lens to rectify this defect. Calculation of power of the lens: This hypermetropic eye can see the nearby object kept at 25 cm clearly if the image is formed at its own near point i.e. 50 cm. Object distance, u=−25 cm Image distance, v=−50 cm v1−u1=f1 −501−−251=f1 f=+50 cm P=f(in cm)100=50100=+2D

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Write an experiment to show the pressure exerted by the same side and pressure exerted by the different side

Posted by Garima Banthia 2 years, 5 months ago

CBSE > Class 08 > Science

0 answers

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Are humans totally aerobic?

Posted by Nehal Agarwal 2 years, 5 months ago

CBSE > Class 10 > Science

4 answers

Aroob Khursheed 2 years, 5 months ago

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Study Dil Sa 1 Chauhan 2 years, 5 months ago

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Mohammad Hadi 2 years, 5 months ago

No humans are not totally aerobic because if we take muscle cramps into consideration they are caused when there is lack of oxygen

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Rati Ram 2 years, 5 months ago

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मित्रभावेन सम्प्राप्तं न त्यजेयं कथञ्चन । दोषो यद्यपि तस्य स्यात् सतामेतदगर्हितम् ॥1॥

Posted by Anamika Kumari 2 years, 5 months ago

CBSE > Class 08 > Sanskrit

1 answers

Dheru Monchik 2 years, 5 months ago

N kadapi

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Four people got a large pizza from a shop at 500, one person didn't eat as much as the other people, So the other three decided that that person will pay only half of the other there paid . Find the amount paid by that person

Posted by Aanya Bhatia 2 years, 5 months ago

CBSE > Class 08 > Mathematics

2 answers

Aanya Bhatia 2 years, 5 months ago

Can u explain

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Bhavik Chiranvdya 2 years, 5 months ago

₹125

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What is the syllabus of English SA1 ?

Posted by Shalu Singh 2 years, 5 months ago

CBSE > Class 10 > English Language and Literature

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Rita has a garden measuring 792cm × 528cm. She wants to plant saplings in the garden. For this she divides the plot into minimum number of equal square plots. (i) What is the area of each square plot and (ii) How many square plots will be there?

Posted by Bapni Padhi 2 years, 5 months ago

CBSE > Class 07 > Mathematics

2 answers

Anandhi Raja 2 years, 3 months ago

69696sqcm

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Bhupendr Fulmali 2 years, 5 months ago

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Write the character sketch of mrs dorling

Posted by Prem Prakash Choudhary 2 years, 5 months ago

CBSE > Class 11 > English Elective NCERT

0 answers

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How will you add padding space to all the four sides of an element?

Posted by Student 1 2 years, 5 months ago

CBSE > Class 10 > Computer Applications (165)

0 answers

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2x +6x -12y

Posted by Srijan Pandey 2 years, 5 months ago

CBSE > Class 08 > Mathematics

2 answers

Nyasa Yadav 2 years, 4 months ago

8x-12y

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Avni Goswami 2 years, 5 months ago

8x-12y

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Did is liberal democratic sediments become a narrow credit with Limited and support the statement in the contents of Balkan Nationalism in the early 19th century

Posted by Sanvi Solanke 2 years, 5 months ago

CBSE > Class 10 > Social Science

0 answers

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Explain the formation of linguistic states of India

Posted by Roddy Wrangler 2 years, 5 months ago

CBSE > Class 10 > Social Science

1 answers

Abhishek Tiwari 2 years, 5 months ago

By the independence of our country many new state were formed and some change, the making of states was regarding to languages, culture the same type of people live and one place then they enjoy that fa.stivals and languages some politician were said that this type of distribution may causes disunity

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What is difference between integrated steel plant and mini steel plant?

Posted by Kahana Deena Dayalan 2 years, 5 months ago

CBSE > Class 10 > Social Science