# How is the power related to the speed at which a body can be lifted? How many kilograms will a man working at the power of 400 W, be able to lift at constant speed of 1 ms–1 vertically? (g = 10 ms–2)

Power = 400 W

Speed = 1m/s

g = 10 m/s2

Power = mgh/t = mgv

m = power/ g x speed = 400/ (10 x 1) = 40 Kg

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Quiz | Lets Solve Numericals54 mins
Let's Calculate Workdone by a Body42 mins
Smart Revision | Let's Understand Power40 mins
Foundation | Let us Understand Law of Conservation of Energy44 mins
NCERT | Introduction to Work39 mins
Smart Revision | Master Work and Its Concepts47 mins
Lakhmir Singh | Work, Energy and Power38 mins
Smart Revision | Let us Calculate the Energy53 mins
Quiz | Lets Solve the Numericals57 mins
Rapid Fire Quiz53 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses