Answer:
Power, P = 39.2 watts
Explanation:
Given that,
Mass of an object, m = 2 kg
Speed of the object, v = 2 m/s
To find,
Power required to lift the object
Solution,
The work done divided by time taken is called power required to lift an object. Its expression is given by :
[tex]P=\dfrac{W}{t}[/tex]
Since, W = F.d
[tex]P=\dfrac{F.d}{t}[/tex]
And v = d/t
[tex]P=F\times v[/tex]
[tex]P=m\times g\times v[/tex]
[tex]P=2\ kg\times 9.8\ m/s^2\times 2\ m/s[/tex]
P = 39.2 watts
So, the power required to lift an object is 39.2 watts.
