A person holds a bucket of weight 60 N . He walks 7 m along the horizontal path and then climbs up a vertical distance of 5 m. The work done by the man is

Question

A person holds a bucket of weight 60 N . He walks 7 m along the horizontal path and then climbs up a vertical distance of 5 m. The work done by the man is (A) 300 J (B) 420 J (C) 720 J (D) None of these

Tardigrade Admin · Accepted Answer

No work is done while covering the horizontal distance because overset arrow F. overset arrow s=0 (∵ θ = 90 ° ) But work is done during vertical displacement which is given by Fh=60× 5=300 J

Q. A person holds a bucket of weight $60 N$ . He walks $7 m$ along the horizontal path and then climbs up a vertical distance of $5 m .$ The work done by the man is

$300 J$

$420 J$

$720 J$

None of these

No work is done while covering the horizontal distance because $F \to . s \to = 0 (∵ θ = 9 0^{\circ})$
But work is done during vertical displacement which is given by
$F h = 60 \times 5 = 300 J$

Q. A person holds a bucket of weight 60N . He walks 7m along the horizontal path and then climbs up a vertical distance of 5m. The work done by the man is

300J

420J

720J