Question

When a weight of 100g is hung on a spring the length of the spring is 9cm and when 150g is hung the length is 11cm.so what is the length if there is no weight on it

Answer 1

11 - L = (150/100)*(9-L)
11-L = 13.5 - 1.5L
0.5x = 2.5
L = 5 cm

Answer 2

Answer:

5cm

Explanation:

If we increase the weight by 50 grams the length increases by 2cm then, if we decrease by 50 grams (100-50=50 grams) the length decreases by 2cm (9-2=7cm) & further if we decrease it by 50 grams (50-50=0 gram) the length will decrease by 2cm (7-2=5cm).

Hope it helps.....

plz mark as brainliest.........