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George pushes a wheelbarrow for a distance of 12 meters at a constant speed for 35 seconds by applying a force of 20 newtons. What is the power applied to push this wheelbarrow? A. 1.2 watts B. 3.4 watts C. 17.15 watts D. 13 watts

Respuesta :

To calculate the power applied to push the wheelbarrow, we use the formula

[tex]P = \frac{W}{t} =\frac{F.l}{t}[/tex]

Here, F is applying force to pushes a wheelbarrow for a distance l in time t s.

Given, [tex]F= 20 N[/tex] ,[tex]L=12 m[/tex] and [tex]t= 35 s[/tex].

Substituting these values in above equation, we get

[tex]P=\frac{20N\times 12 m}{35 s} =6.85 W[/tex]

Thus, the power applied to push this wheelbarrow is 6.9 W.

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