How much power is required to lift a 2.0kg mass at a speed of 2.0m/s

Question

asked Mar 17, 2019 136k views

2 Answers

Wohlstad · Answer 1 · 2019-03-21T10:49:16+0000

Answer:

Power, P = 39.2 watts

Step-by-step 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 :

P=(W)/(t)

Since, W = F.d

P=(F.d)/(t)

And v = d/t

P=F* v

P=m* g* v

$P=2\ kg* 9.8\ m/s^2* 2\ m/s$

P = 39.2 watts

So, the power required to lift an object is 39.2 watts.