H2P-158
Newton’s second law
H2 Physics · JC 1 · Hard · Newton’s second law
A 70 kg person stands on a lift floor. The lift accelerates upwards at .
What is the reading on the scale in the floor (the normal reaction on the person)?
What is the reading on the scale in the floor (the normal reaction on the person)?
- 7.9 × 10² N
- 6.5 × 10² N
- 5.0 × 10² N
- 9.2 × 10² N
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