If 770 kg is lifted 1.5 m in 4 seconds, what power is used?

Question

1234 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-07-04T03:19:08

#2832.6375# watts of power was used

Power is Work over time, so we need to find work first.

Work = Force * Distance, and force is measured in newtons, so we must convert kg to N first.

#1kg=9.81N#
#770kg=7553.7N#

Now, we can calculate for work:

#w=fd#
#w=7553.7N*1.5m#
#w=11330.55J#

Since power is just work over time, divide the work used by the time (4 seconds).

#(11330.55J)/(4s)=2832.6375# watts