A worker pushes a crate with a constant force directed below the horizontal

PHYSICS · Single correct · CBSE · Physics · Work and Energy · Work and Energy

Problem

A worker pushes a crate with a constant

50\,\text{N}

force directed

37^{\circ}

below the horizontal. The crate moves

8.0\,\text{m}

horizontally. What is the work done by the worker’s force on the crate? (a)

2.4 \times 10^{2}\,\text{J}

(b)

-3.2 \times 10^{2}\,\text{J}

(c)

4.0 \times 10^{2}\,\text{J}

(d)

3.2 \times 10^{2}\,\text{J}