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LAKHMIR SINGH & MANJIT KAUR-FORCE AND LAWS OF MOTION-Exercise
- Name the scientist who gave the laws of motion.
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- State whether force is a scalar or a vector quantity.
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- With which physical quantity should the speed of a running bull be mul...
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- Fill in the following blanks with suitable words: (a) …... is a meas...
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- It is easier to stop a tennis ball than a cricket ball moving with the...
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- Explain the meaning of the following equation: p=mxxv where symbol...
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- Explain how, a karate player can break a pile of tiles with a single b...
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- Calculate the momentum of a toy car of mass 200 g moving with a speed ...
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- What is the change in momentum of a car weighing 1500 kg when its spee...
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- A body of mass 25 kg has a momentum of 125 kg.m/s. Calculate the veloc...
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- Calculate the momentum of the following: (a) an elephant of mass 200...
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- Which of the two, balanced forces or unbalanced forces, can change the...
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- Describe the term 'inertia' with respect to motion.
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- On what factor does the inertia of a body depend ? Which has more iner...
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- A person in a bus tends to fall backward, when it starts suddenly?
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- Why does a person in a bus tends to fall forward when it stops suddenl...
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- When a carpet is beaten with a stick, dust comes out of it, Explain.
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- When a branch of a tree is shaken, some of the fruits may fall down. W...
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- Explain why, it is dangerous to jump out of a moving bus.
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- What is the momentum in kg.m/s of a 10 kg car travelling at (a) 5 m/s ...
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