Question

How much power is used to move a 25 kg mass 8 meters in 15 seconds?

Answer 1

power done is 196 watts

Answer 2

Concept: Physics

• Power is related to Work which we will find below
• 
  `work = f * d`
• Note that force is a vector quantity that has magnitude and direction
• We have a mass of 25 kg and we want to know the force it exerts by newton's first law: 25 × 9.81 m/s^2 = 245 N
• Now we have our force and d
• 245 × 8 meters= 1960 J
• Power is represented in joules
• The equation for Power is
• 
  `p = (w)/(t)`
• Hence
• 
  `(1960)/(10)`
• So we get that P= 196 W