Force $F$ on a particle moving in a straight line varies with distance $d$ as shown in figure. The w

Question

Force $F$ on a particle moving in a straight line varies with distance $d$ as shown in figure. The work done on the particle during its displacement of 12 m is\

Professor PC Thomas Classes · Answer

(d) :\ Work done $=$ Area under $(F-d)$ graph\ $=$ Area of rectangle $A B C D+$ Area of triangle $D C E$\ $=2 	imes(7-3)+\frac{1}{2} 	imes 2 	imes(12-7)=8+5=13 \mathrm{~J}$\