Question
Question: A person pushes a block of mass 4 kg up a frictionless inclined plane 10 m long and that makes an an...
A person pushes a block of mass 4 kg up a frictionless inclined plane 10 m long and that makes an angle of 30° with the horizontal. Then the work done is –
A
33.5 J
B
392 J
C
196 J
D
– 196 J
Answer
196 J
Explanation
Solution
W = (Mg sin q) d