Answer :
To find the weight of the piano, we will use the formula for weight:
[tex]\[ \text{Weight} = \text{mass} \times \text{gravitational acceleration} \][/tex]
Here are the steps to solve the problem:
1. Identify the mass of the piano: The mass is given as 99 kg.
2. Identify the gravitational acceleration: On Earth, the standard gravitational acceleration is approximately 9.8 m/s².
3. Calculate the weight:
[tex]\[
\text{Weight} = 99 \, \text{kg} \times 9.8 \, \text{m/s}^2 = 970.2 \, \text{N}
\][/tex]
4. Round the result: The weight comes out to be 970.2 N. When rounding to the nearest whole number, we get approximately 970 N.
5. Select the closest answer: Comparing this with the provided options, 970 N corresponds to option A.
Therefore, the weight of the piano is approximately 970 N, and the correct choice is A. 970 N.
[tex]\[ \text{Weight} = \text{mass} \times \text{gravitational acceleration} \][/tex]
Here are the steps to solve the problem:
1. Identify the mass of the piano: The mass is given as 99 kg.
2. Identify the gravitational acceleration: On Earth, the standard gravitational acceleration is approximately 9.8 m/s².
3. Calculate the weight:
[tex]\[
\text{Weight} = 99 \, \text{kg} \times 9.8 \, \text{m/s}^2 = 970.2 \, \text{N}
\][/tex]
4. Round the result: The weight comes out to be 970.2 N. When rounding to the nearest whole number, we get approximately 970 N.
5. Select the closest answer: Comparing this with the provided options, 970 N corresponds to option A.
Therefore, the weight of the piano is approximately 970 N, and the correct choice is A. 970 N.
