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## Homework Statement

Across a horizontal floor,a ##102 kg## block is pulled at a constant speed of ##5.5\frac {m} {s}## by an applied force ##125N## directed ##38^°## above the horizontal.Calculate the rate at which the force does work on the block.

## Homework Equations

##W=ΔE_k##

##E_k=\frac 1 2 mv^2##

## The Attempt at a Solution

I didnt understand the question.Whats does the

**Calculate the rate at which the force does work on the block**means.Net work must be zero cause object moves in constant speed.So there must be a fricition maybe ?

Thanks