Question

a 50 kg carte is lifted to a height of 10 meters.

how much potential energy does the crate have after being lifted?

Answer 1

\[P=mgh\]

Answer 2

P.E= (50)*(9.81)*(10)=4905J

Answer 3

if it ook 5 seconds to lift the carte using a machine what was the power rating of the machine

Answer 4

\[Power= delta W/delta t\]

Answer 5

\[Power= \delta W/\delta t\]

Answer 6

s tha answer should be

Answer 7

plug in the work done and divide by the time taken

Answer 8

Power = 4905/5=981J/s