A block is launched with a speed of along a rough horizontal table

PHYSICS · Single correct · CBSE · Physics · Laws of Motion · Laws of Motion

Problem

1.0\,\text{kg}

block is launched with a speed of

4.0\,\text{m/s}

along a rough horizontal table. After sliding

2.0\,\text{m}

across surface X (coefficient of kinetic friction

\mu_X = 0.10

), it transitions onto surface Y, where the coefficient of kinetic friction is

\mu_Y = 0.25

. Neglecting the effects at the boundary, how far does the block travel on surface Y before coming to rest? (Assume

g = 9.8\,\text{m/s}^2

.) (a)

4.9\,\text{m}

(b)

2.5\,\text{m}

(c)

6.2\,\text{m}

(d)

3.3\,\text{m}