a world record holder lifted 261 kg to height of 2.3 m in 4 sec . assuming g = 10 m/s^2 find 1. weight lifted , 2. work done by the lifter 3. power developed by the lifter Share with your friends Share 2 Satyam Ranjan Sinha answered this 1 View Full Answer Manit Sarkar answered this Dear student, (a) Weight lifted by him = m x g = 261 x 10 = 2610 N. (b) Work done by him = F x d = 261 x 2.3 J = 6003 J. (c) Power developed by him = Work in J/Time in s = 6003/4 Watt = 1500.75 W. Regards!! 0