a stone of mass 20 grams is thrown upwards with a velocity of 19.6m/s. the stone reaches the maximum height in two secons....what is d work done on d stone..!!!//cud i get d solution 4 dis question??
w.d = energy
=change in kinetic energy
=1/2 m*v2 –u2
=1/2*0.02*((0)2 –(19.6)2 ) (when the body is at top most point v2 = 0)
=3.8416J
thereforework done on the stone is 3.8416 joule
sorry for the first answer