An engineer must slide a heavy crate by applying a force at to the horizontal

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Work Energy and Power · Work Energy and Power

Problem

An engineer must slide a heavy crate by applying a force at

30^{\circ}

to the horizontal. If

2.4\,\text{kJ}

of work is required to move the crate

40\,\text{cm}

, what is the magnitude of the force needed? (a) approximately

5.2\times10^{3}\,\text{N}

(b) approximately

6.9\times10^{3}\,\text{N}

1.2\times10^{4}\,\text{N}

(d) approximately

3.0\times10^{3}\,\text{N}