Work, Power and EnergyHard
Question
If 
and displacement 
, then the work done is :-
and displacement , then the work done is :-Options
A.4 × 3
B.5 × 6
C.6 × 3
D.4 × 6
More Work, Power and Energy Questions
A planet moves round the Sun in an elliptical orbit such that its K.E. is k1 and k2 when it is nearest to the Sun and fa...When a rubber-band is stretched by a distance x, it exerts a restoring force of magnitude F = ax + bx2 where a and b are...An inductor 20 mH, a capacitor 100 μF and a resistor 50Ω are connected in series across a source of emf, V = 10 ...A particle is projected along the inner surface of a smooth vertical circle of radius R, its velocity at the lowest bein...A spherical ball of mass 20 kg is stationary at the top of a hill of height 100 m. It rolls down a smooth surface to the...