A block of mass 10kg is moved at a constant speed through a horizontal distance of 4m, by applying a force 50N. How much work ha
s been done when the force is applied in direction?
1- in the same direction of displacement
2- at an angle of 30 with displacement
1- in the same direction of displacement
2- at an angle of 30 with displacement
1 answer:
You might be interested in
The efficiency of an ideal Carnot heat engine can be written as:
where
is the temperature of the cold region
is the temperature of the hot region
For the engine in our problem, we have
and 
, so the efficiency is
where
For the engine in our problem, we have