Question

if 784 joule of work was done in lifting a 20 kg mass , calculate the height through which was lifted. (g=9.8 m/s)
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Answer 1

Answer:

the answer is 4 m as work is MGH use the formula and solve them

Answer 2

Answer:

P. E. = m*g*h = mgh

h= 784/20*9.8

height = 4 m