Answer :
Final answer:
The weight of the 99 kg piano on Earth is calculated using the formula w = mg, resulting in a weight of 970.2 Newtons (N).
Explanation:
The weight of an object is determined by the formula weight (w) = mass (m) × gravitational acceleration (g). Given that the mass (m) of the piano is 99 kg and the acceleration due to gravity (g) on Earth is 9.80 m/s², the weight of the piano can be calculated by multiplying these two values:
w = 99 kg × 9.80 m/s² = 970.2 Newtons (N)
Therefore, the weight of the piano is 970.2 N on Earth.
