Question
A spring balance has a maximum reading of 10 N and the length of the calibrated scale is 20 cm. A rectangular metal block measuring 10 cm by 2 cm is hung on the balance and stretches the spring by 15 cm . Calculate; the weight of the block. ; the mass of the block.
Hint:w=mg and g=10ms-²
Hint:w=mg and g=10ms-²
Answers
3/4 the max stretch means 3/4 the max load: 3/4 * 10 = ___ N
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