SATHEE: Laws Of Motion Question 79

Laws Of Motion Question 79

Question: The resultant of two forces $3 P$ and $2 P$ is R. If the first force is doubled then the resultant is also doubled. The angle between the two forces is[KCET 2001]

Options:

A) $Math input error$

B) $120^{o}$

C) $70^{o}$

D) $180^{o}$

Show Answer

Answer:

Correct Answer: B

Solution:

$R^{2} = {(3 P)}^{2} + {(2 P)}^{2} + 2 \times 3 P \times 2 P \times \cos θ$ -(i) ${(2 R)}^{2} = {(6 P)}^{2} + {(2 P)}^{2} + 2 \times 6 P \times 2 P \times \cos θ$ -(ii) by solving (i) and (ii), $\cos θ = - 1 / 2$

therefore $θ = 120^{\circ}$

पिछला

अगला

Laws Of Motion Question 79

Question: The resultant of two forces $3 P$ and $2 P$ is R. If the first force is doubled then the resultant is also doubled. The angle between the two forces is[KCET 2001]

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

Laws Of Motion Question 79

Question: The resultant of two forces 3P and 2P is R. If the first force is doubled then the resultant is also doubled. The angle between the two forces is[KCET 2001]

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: The resultant of two forces $3 P$ and $2 P$ is R. If the first force is doubled then the resultant is also doubled. The angle between the two forces is[KCET 2001]