Question

A box is given an initial speed of 20m/s as it slides along a horizontal surface. The coefficient of kinetic friction between the box and the table is 0.10. What distance the box slides before coming to stop?

Answer 1

Answer:

204 m

Explanation:

Work done by friction = change in kinetic energy

W = KE

Fd = ½ mv²

mgμ d = ½ mv²

gμ d = ½ v²

Plug in values:

(9.8) (0.10) d = ½ (20)²

d = 204 m