oh yea thanks!
since
work done = force x distance moved in direction of force
so, X must not be calculated because if X is in, we're calculating work done.
thanks! =)
nope I'm taking physics unit 1.
this topic is killing me.
thanks for the link anyway =)
ok. so, if there is no frictional force acting on the body,
so, basically, the only force acting on the object is mgxsin(theta)?
F = mgxsin(theta)
?
ok erm..
i was thinking
mgxsinθ = Frictional force x x
because since the object is not moving, gravitational potential energy is equals to frictional force?
please help me my edexcel exams are drawing really near.
thanks
The diagram shows a smooth wooden board 30cm long. One end is raised 15cm above the other. A 100g mass is placed on the board. The two forces acting on the 100 g mass are shown in the free-body force diagram.
what is the magnitude of the resultant force?