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SL ARORA-Laws of Motion-Exercise
- Define absolute and gravitational units of force state relation betwee...
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- State Newton's Second law of motion. Derive a mathematical formula to ...
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- State Newton's third law of motion. Derive the law of conservation of ...
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- Why does a gun recoil on firing? Obtain an expression for recoil veloc...
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- Name a varying mass system Drive the expressions the (i) for the veloc...
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- Two masses M and m are connected at the two ends of an inextensible st...
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- Is impulse a scalar or vector quantity ? Write its SI unit.
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- State and establish impulse-momentum theorem.
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- Explain the term impulse Show that impulse of a variable force is equa...
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- What is friction ?
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- Define coefficient of friction and angle of friction and hence derive ...
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- Define angle of friction and angle of repose. Show that both are numer...
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- It is easier to pull a lawn roller than to push it because pulling .
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- Describe any two methods of reducing friction.
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- Define force of friction. How does the use of ball bearing reduce fric...
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- What do you mean by ball bearings ? How sliding friction is converted ...
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- Calculate the amount of work done in moving a body up a rough inclined...
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- Derive an expression for the work done when a body slides down a rough...
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- Obtain an expression for the acceleration of a body sliding down a rou...
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- Define the term coefficient of limiting friction between the surfaces....
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