A hill is 100 m long and makes an angle of 12 $\degree$with the horizontal.As a 50-kg jogger runs up the hill,how much work does gravity do on the jogger?
A)49 000 J
B)10 000 J
C)-10 000 J
D)zero

Question

Quizplus · Accepted Answer

The work done by gravity is negative because it acts in the opposite direction to the jogger's movement. The vertical height can be calculated using trigonometry (height = 100 m * sin(12°)), and then work done by gravity is calculated as mgh, which results in approximately -10,000 J.

A Hill Is 100 M Long and Makes an Angle °\degree°

A Hill Is 100 M Long and Makes an Angle $\degree$