Given the two blocks stacked on the table below. What is the Normal force being

Question

Given the two blocks stacked on the table below. What is the Normal force being exerted on the table? m_1g m_1g (m_1 + m_2)g (m_1 - m_2)g 0 The pressure exerted on the ground by a person is smallest when: he stands with both feet flat on the ground he stand flat on one foot he stands on the toes of one foot he lies down on the ground all of the above yield the same pressure IN a stationary homogeneous liquid: pressure is the same at all points pressure depends on the direction pressure is independent of any atmospheric pressure on the upper surface of the liquid. pressure is the same at all points at the same level none of the above

Explanation / Answer

1)

As we know that

Normal force exerted = total mass * gravitational acceleration

So,

Normal exerted on the table = (m1 + m2)*g

Which is (C)

2)

The pressure exerted on the ground by a person is smallest when he lies down on the ground because as we know that

pressure = force / area

so here,

pressure is inversely proportional to area

so answere is (D)

(3)

As we know that

P = Pambient + gh .

If h is constant so is P.

So,

answere is (D)

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