KCET 2022 | Work, Energy and Power Question 4 | Physics

A smooth chain of length $$2 \mathrm{~m}$$ is kept on a table such that its length of $$60 \mathrm{~cm}$$ hangs freely from the edge of the table. The total mass of the chain is $$4 \mathrm{~kg}$$. The work done in pulling the entire chain on the table is (Take, $$g=10 \mathrm{~m} / \mathrm{s}^2$$)

6.3 J

3.6 J

2.0 J

12.9 J

KCET 2020

MCQ (Single Correct Answer)

-0

A body is initially at rest. It undergoes one-dimensional motion with constant acceleration. The power delivered to it at time $$t$$ is proportional to

$$t^{1 / 2}$$

$$t$$

$$t^{3 / 2}$$

$$t^2$$

KCET 2018

MCQ (Single Correct Answer)

-0

Two particles of masses $m_1$ and $m_2$ have equal kinetic energies. The ratio of their momentum is

$m_1: m_2$

$m_2: m_1$

$\sqrt{m_1}: \sqrt{m_2}$

$m_1^2: m_2^2$

KCET 2017

MCQ (Single Correct Answer)

-0

A motor pump lifts 6 tonnes of water from a well of depth 25 m to the first floor of height 35 m from the ground floor in 20 minutes. The power of the pump (in kW ) is $\left[g=10 \mathrm{~ms}^{-2}\right.$ ]

1.5

Questions Asked from MCQ (Single Correct Answer)

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