Question

Find the work done in moving a 50 kg block through a horizontal distance of 10 m. by applying a force of 100 N which makes an angle of ${60}^{\circ }$ with the horizontal:

• A. 50 joule
• B. 50 ergs
• C. 500 joule
• D. 500 ergs

Answer 1

The correct option is C 500 joule

$W=\int \overline{F}.\overline{d}s$

$W=100\times cos{60}^{\circ }\times 10=500J$