1 Answer

F P · Answer 1 · 2021-03-22T16:00:36+0000

Answer:

$D.\ 970\ N$

Step-by-step explanation:

Given:

Mass of Piano: 99kg

Required:

Calculate its weight

The weight of an object is calculate as thus;

$Weight = Mass\ (m) * Acceleration\ due\ to\ gravity\ (g)$

m = 99kg and
g = 9.8m/s^2

The formula becomes

Weight = 99kg * 9.8m/s^2

$Weight = 970.2\ kgm/s^2$

$Weight = 970.2\ N$

$Weight = 970\ N$ Approximated

Hence, the weight of the piano is 970N

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