Asked by Renka Jai
How many newtons of force are necessary to accelerate a 0.0050 kg mass at the acceleration (a) of 9.81 m/s2 with the force expressed in the correct number of significant figures? (F = ma)
0.04905 N
0.049 N
0.05 N
4.91 × 102 N
Please help me :( It's just one little question.
0.04905 N
0.049 N
0.05 N
4.91 × 102 N
Please help me :( It's just one little question.
Answers
Answered by
Damon
9.81 has three sig figs.
.0050 is two figs, the 50 on the end
.0050 * 9.981 = .04905
which to two sig figs is .049 N
so
0.049
.0050 is two figs, the 50 on the end
.0050 * 9.981 = .04905
which to two sig figs is .049 N
so
0.049
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