Answer:
8.82 Joules
Explanation:
The formula to calculate the work done is :
Work done = mgh
where :
m is mass of the object
g is gravitational constant (g = 9.8 m/s²)
h is height
substitute the required values in the above formula
Work done = 0.9 × 9.8 × 1
Work done = 8.82 Joules
Hence, the required work done is 8.82 Joules
