• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

simple work-force-displacement question...

jobberd

Banned
a 35 kg trunk is dragged 10 m up a ramp inclined at an angle of 12º to the horizontal by a force of 90 N applied at an angle of 20º to the ramp. What is the total work done?
I am supposed to use the W = F*d*cos(angle between force and displacement vectors). My friend says that the angle is 32º, but I think it is supposed to be 20º. Who is right?
 
Back
Top