Question 124: Laws of Motion

Question

A spring whose unstretched length is l has a force constant k. The spring is cut into two pieces of unstretched
lengths l1 and l2 where, l1 = nl2 and n is an integer. The ratio k1/k2 of the corresponding force constant, k1 and
k2 will be :

Accepted Answer

For a spring, k$$ 	imes $$$$l$$ = constant.
$$ 	herefore $$ k
1
$${l_1}$$ = k
2
$${l_2}$$
$$ \Rightarrow $$ $${{{k_1}} \over {{k_2}}} = {{{l_2}} \over {{l_1}}}$$ = $${{{l_2}} \over {n{l_2}}}$$ = $${1 \over n}$$

Answer

$${1 \over {{n^2}}}$$

Answer

$${1 \over n}$$

Answer

n2

Answer

n

Laws of Motion

A spring whose unstretched length is l has a force constant k. The spring is cut into two pieces of unstretched lengths l1 and l2 where, l1 = nl2 and n is an integer. The ratio k1/k2 of the corresponding force constant, k1 and k2 will be :

Choose the correct answer: