Work, Power and EnergyHard
Question
A spring of spring constant 5 × 103 N/m is stretched initially by 5 cm from the unstretched position. Then the work required to stretch is further by another 5 cm is
Options
A.12.50 N-m
B.18.75 N-m
C.25.00 N-m
D.6.25 N-m
Solution
Required work done = 25 - 6.25 = 18.75 N-m.
Create a free account to view solution
View Solution FreeMore Work, Power and Energy Questions
A ball moving with velocity of 9m/s collides with another similar stationary ball. After the collision both the balls mo...A force acting on a body, produces a displacement . Work done by the force is :-...Given below are two statements :Statement I: For a mechanical system of many particles total kinetic energy is the sum o...A container of fixed volume has a mixutre of one mole of hydrogen and one mole of helium in equilibrium at temperature T...When a metal surface is illuminated by light of wavelengths 400 nm and 250 nm, the maximum velocities of the photoelectr...