SATHEE: Work Energy And Power Question 169

Work Energy And Power Question 169

Question: A mass of 20 kg moving with a speed of 10m/s collides with another stationary mass of $5 k g .$ As a result of the collision, the two masses stick together. The kinetic energy of the composite mass will be [MP PMT 2000]

Options:

A) 600 Joule

B) 800 Joule

C) 1000 Joule

D) 1200 Joule

Show Answer

Answer:

Correct Answer: B

Solution:

$m_{1} v_{1} + m_{2} v_{2} = (m_{1} + m_{2}) v_{s y s .}$

$20 \times 10 + 5 \times 0 = (20 + 5) v_{s y s .}$

therefore $v_{s y s .} = 8 m / s$

K.E. of composite mass $= \frac{1}{2} (20 + 5) \times {(8)}^{2} = 800 J$

पिछला

अगला

Work Energy And Power Question 169

Question: A mass of 20 kg moving with a speed of 10m/s collides with another stationary mass of $5 k g .$ As a result of the collision, the two masses stick together. The kinetic energy of the composite mass will be [MP PMT 2000]

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

Work Energy And Power Question 169

Question: A mass of 20 kg moving with a speed of 10m/s collides with another stationary mass of 5kg. As a result of the collision, the two masses stick together. The kinetic energy of the composite mass will be [MP PMT 2000]

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 mass of 20 kg moving with a speed of 10m/s collides with another stationary mass of $5 k g .$ As a result of the collision, the two masses stick together. The kinetic energy of the composite mass will be [MP PMT 2000]