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प्रश्न
Fill in the following blanks with suitable words :
Momentum is a _____________ quantity. Its unit is _____________.
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उत्तर
Momentum is a vector quantity. Its unit is kg.m/s.
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संबंधित प्रश्न
Name the physical quantity whose unit is kg.m/s.
Explain why, it is easier to stop a tennis ball than a cricket ball moving with the same speed.
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the sum of products of masses and velocities of two moving bodies before and after their collision remains the same.
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Suppose a ball of mass m is thrown vertically upward with an initial speed v, its speed decreases continuously till it becomes zero. Thereafter, the ball begins to fall downward and attains the speed v again before striking the ground. It implies that the magnitude of the initial and final momentums of the ball are the same. Yet, it is not an example of conservation of momentum. Explain why?
