Question

Riding a skateboard. why is it an example of positive work

Answer 1

Answer:

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Answer 2

Explanation:

Work is force applied over a distance:

W

=

F

⋅

d

, where

W

is work,

F

is force in Newtons (N), and

d

is the distance over which the force is applied.

The skateboard has the ability to do work because of the weight of the boy plus the weight of the skateboard. The weight of an object is the force of gravity acting on the object, with the formula

Weight=mg=N

, where

m

is mass in kilograms, and

g

is the acceleration due to gravity,

9.8 m/s

2

, and N is Newtons.

To determine the work done by the skateboard, multiply the weight of the boy and the skateboard in Newtons by the distance the skateboard travels in meters. The unit for work is

N

⋅

m

.