Work, Power and EnergyHard
Question
A spring of force constant k is cut into two pieces such that one is double the length of the other. Then the long piece will have a force constant of
Options
A.(2/3) k
B.(3/2) k
C.3 k
D.6 k
Solution
l1 = 2l1 ∴ l1 =
l
force constant k ∝

∴ k1 =
k
lforce constant k ∝

∴ k1 =
kCreate a free account to view solution
View Solution FreeMore Work, Power and Energy Questions
A body of mass is slowly halved up the rough hill by a force F at which each point is directed along a tangent to the hi...Four equal charges of magnitude q are arranged as shown in fig. Now the charge at center C is taken to infinite, then wo...A metal surface is illuminated by light of two different wavelengths 248 nm and 310 nm. The maximum speeds of the photoe...A 10 kg satellite completes one revolution around the earth at a height of 100 km in 108 minutes. The work done by the g...The kinetic energy of a particle continuously increase with time. Then...