Hejumacal

This page lists questions and answers that were posted by visitors named Hejumacal.

Questions

The following questions were asked by visitors named Hejumacal.

A crane lifts a 200kg load at a steady velocity.It takes 12s to raise the load through 60m. i) What is the power needed to lift the load if there is no friction? ii) What is the power needed if the friction force is constant at 170N?
10 years ago

Answers

The following answers were posted by visitors named Hejumacal.

Is 8.65*10^4 has the order of magnitude 10^4 or 10^5? My answeris 10^4
10 years ago