SATHEE: Kinematics Question 520

Kinematics Question 520

Question: A bird it’s flying towards north with a velocity $40 k m h^{- 1}$ and a train is moving with velocity $40 k m h^{- 1}$ towards east. What is the velocity of the bird noted by a man in the train?

Options:

A) $40 \sqrt{2} k m h^{- 1} N - E$

B) $40 \sqrt{2} k m h^{- 1} S - E$

C) $40 \sqrt{2} k m h^{- 1} N - W$

D) $40 \sqrt{2} k m h^{- 1} S - W$

Show Answer

Answer:

Correct Answer: C

Solution:

[c] To find the relative velocity of bird w.r.t train, superimpose velocity $- \vec{v} T$ on both the objects.

Now as a result of it , the train is at rest, while the bird possesses two velocities,

$\vec{v}$ B towards north and $- {\vec{v}}_{T}$ along west.

$| \vec{v} B T | = \sqrt{{| \vec{v} B |}^{2} + {| - \vec{v} T |}^{2}}$

[By formula, $θ = 90^{\circ}$ ] $= \sqrt{40^{2} + 40^{2}} = 40 \sqrt{2}$

$k m h^{- 1}$ north-west

पिछला

अगला

Kinematics Question 520

Question: A bird it’s flying towards north with a velocity $40 k m h^{- 1}$ and a train is moving with velocity $40 k m h^{- 1}$ towards east. What is the velocity of the bird noted by a man in the train?

Options:

Answer:

Solution:

इंजीनियरिंग की तैयारी

चिकित्सा तैयारी

एनसीईआरटी पुस्तकें और समाधान

महत्वपूर्ण संसाधन

अन्य संसाधन

पाठ्यक्रम

परीक्षा मंच

नमूना मॉक टेस्ट

सदस्यता

एनसीईआरटी व्यायाम वीडियो समाधान

Kinematics Question 520

Question: A bird it’s flying towards north with a velocity 40kmh−1 and a train is moving with velocity 40kmh−1 towards east. What is the velocity of the bird noted by a man in the train?

Options:

Answer:

Solution:

इंजीनियरिंग की तैयारी

चिकित्सा तैयारी

एनसीईआरटी पुस्तकें और समाधान

महत्वपूर्ण संसाधन

अन्य संसाधन

पाठ्यक्रम

परीक्षा मंच

नमूना मॉक टेस्ट

सदस्यता

एनसीईआरटी व्यायाम वीडियो समाधान

Menu

Question: A bird it’s flying towards north with a velocity $40 k m h^{- 1}$ and a train is moving with velocity $40 k m h^{- 1}$ towards east. What is the velocity of the bird noted by a man in the train?