Physics

Problem

A skater of mass

60\,\text{kg}

pushes backward on the ice with a horizontal force of

90\,\text{N}

. The coefficient of kinetic friction between the skates and the ice is

0.05

. Take

g = 10\,\text{m}\,\text{s}^{-2}

. What is the skater’s acceleration? a)

2.0\,\text{m}\,\text{s}^{-2}

1\,\text{m}\,\text{s}^{-2}

0.5\,\text{m}\,\text{s}^{-2}

1.5\,\text{m}\,\text{s}^{-2}