You lift an 8.8 kg ball to the top of a 2.7 m high staircase in 6.7 s. How much work is done when an 8.8 kg ball is lifted to the top of a staircase of 2.7 m high?
a) 235.2 J
b) 628.56 J
c) 118.8 J
d) 194.04 J