JEE Main & Advanced
Sample Paper
JEE Main Sample Paper-41
question_answer
A child pushes a toy box 4.0 m along the floor by means of a force of 6 N directed downward at an angle of \[37{}^\circ \] to the horizontal. How much work does the child do?
A) 18.0 J
B) 19.2 J
C) 14.4 J
D) None of these
Correct Answer:
B
Solution :
Work =Fs cos \[37{}^\circ \] = (6) (4) (0.80) = 19.2 J