Question

As shown in the figure, a particle of mass 10 kg is placed at a point A. When the particle is slightly displaced to its right, it starts moving and reaches the point B. The speed of the particle at B is x m/s. (Take g = 10 m/s²)

The value of 'x' to the nearest integer is.......

Answer 1

Answer is 10

Using work energy theorem,

W_g = △K.E.

(10) (g) (5) = \(\frac 12(10)v^2-0\)

v = 10 m/s