AP EAPCET 2024 - 22th May Morning Shift | Work, Energy and Power Question 3 | Physics

A body thrown vertically upwards from the ground reaches a maximum height $H$. The ratio of the velocities of the body at heights $\frac{3 H}{4}$ and $\frac{8 H}{9}$ from the ground is

$4: 9$

$27: 32$

$3: 2$

$3: 8$

AP EAPCET 2024 - 22th May Morning Shift

MCQ (Single Correct Answer)

-0

The average power generated by a 90 kg mountain climber who climbs a summit of height 600 m in 90 min is (Acceleration due to gravity $=10 \mathrm{~ms}^{-2}$ )

100 W

25 W

200 W

50 Wv

AP EAPCET 2024 - 21th May Evening Shift

MCQ (Single Correct Answer)

-0

A light body of momentum $p_L$ and a heavy body of momentum $p_H$ both have the same kinetic energy, then

$p_L>p_H$

$p_H>p_L$

$p_L=p_H$

always $p_H=2 p_L$

AP EAPCET 2024 - 21th May Evening Shift

MCQ (Single Correct Answer)

-0

A machine with efficiency $\frac{2}{3}$ used 12 J of energy in lifting 2 kg block through certain height and it is allowed to fall through the same. The velocity while it reach the ground is

$\sqrt{2} \mathrm{~ms}^{-1}$

$2 \mathrm{~ms}^{-1}$

$2 \sqrt{2} \mathrm{~ms}^{-1}$

$0.2 \mathrm{~ms}^{-1}$

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