AP EAPCET 2025 - 21st May Morning Shift | Work, Energy and Power Question 20 | Physics

A person holds a ball of mass 0.25 kg in his hand and throws it, so that it leaves his hand with a speed of $12 \mathrm{~ms}^{-1}$. In this process, if his hand moved through a distance of 0.9 m , then the net force acted on the ball is

40 N

20 N

25 N

10 N

AP EAPCET 2024 - 23th May Morning Shift

MCQ (Single Correct Answer)

-0

A particle of mass $m$ at rest on a rough horizontal surface with a coefficient of friction $\mu$ is given a

velocity $u$. The average power imparted by friction before it stops

zero

$\frac{1}{2} \mu m g u$

$\mu m g u$

$2 \mu \mathrm{Mgv}$

AP EAPCET 2024 - 22th May Evening Shift

MCQ (Single Correct Answer)

-0

A force of $(4 \hat{\mathbf{i}}+2 \hat{\mathbf{j}}+\hat{\mathbf{k}}) \mathrm{N}$ is action on a particle of mass 2 kg displaces the particle from a position of $(2 \hat{\mathbf{i}}+2 \hat{\mathbf{j}}+\hat{\mathbf{k}})$ $m$ to a position of $(4 \hat{\mathbf{i}}+3 \hat{\mathbf{j}}+2 \hat{\mathbf{k}}) \mathrm{m}$. The work done by the force on the particle in joules is

21 J

11 J

14 J

18 J

AP EAPCET 2024 - 22th May Morning Shift

MCQ (Single Correct Answer)

-0

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

$4: 9$

$27: 32$

$3: 2$

$3: 8$

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