While driving down an icy road in his pickup truck, Dan slid off the road into a ditch. He and his two friends each exerted a force of 200 N on the truck for two minutes, but failed to move it. The work done by the three friends on the truck was?
the answer is 3.0m/s but isn't work in Joules?!?!
Nuts to your "answer". Work=force*distancemoved
lol! thank! i was thinking i was missing something! :P
Yes, you are correct. Work is indeed measured in joules (J). The answer 3.0 m/s given for the question seems to be incorrect.
To determine the work done, we first need to find the distance over which the force is applied. Given that Dan and his two friends exerted a force of 200 N on the truck for two minutes, we need to convert the time into seconds to be consistent with the units of the force.
1 minute = 60 seconds
So, 2 minutes = 2 x 60 = 120 seconds.
Now, let's assume that the force was applied in a straight line and the truck did not move in that direction. This means that no work was done on the truck, as work is defined as force multiplied by the displacement in the direction of the force. Since the truck did not move, the displacement is zero, and therefore no work was done.
Therefore, the work done by Dan and his two friends on the truck is zero joules (0 J).