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1. Two masses one n times heavy as thr other have equal K.E's. How do their momentum compare? 2. The breaking force for a wire is F. What'll be the breaking force for (a) 2 parallel wires of the same size. (b) for a single wire of double the thickness ? 3. 2 springs have force constants k 1 & k 2 (k 1 > k 2 ). On which spring is more work done, if (i) they are stretched by the same force & (ii) they are stretched by the same amount ? 4. If a man goes from the surface of the earth to a height equal to the radius of the earth, then what'll be his weight relative to that on earth? What is the weight if he goes equally below the surface of the earth?

1. Two masses one n times heavy as thr other have equal K.E's. How do their momentum compare?


2. The breaking force for a wire is F. What'll be the breaking force for (a) 2 parallel wires of the same size. (b) for a single wire of double the thickness ?


3. 2 springs have force constants k1 & k2 (k1 > k2). On which spring is more work done, if (i) they are stretched by the same force & (ii) they are stretched by the same amount ?


4. If a man goes from the surface of the earth to a height equal to the radius of the earth, then what'll be his weight relative to that on earth? What is the weight if he goes equally below the surface of the earth? 

Grade:Upto college level

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