148728 The ball initially has a velocity of $5 \mathrm{~m} \mathrm{~s}^{-1}$ in the positive $x$-direction and some time later has a velocity of $7 \mathrm{~m} \mathrm{~s}^{-1}$ in the positive y-direction. If the work done by the ball is 48 joule, then the mass of the ball in $\mathrm{kg}$ is

148729 A $1 \mathrm{~kg}$ box placed at the origin starts sliding along $x$-axis under the action of a force $\vec{F}=\vec{F}$. Its acceleration as a function of $x$ is given by $a(x)=\beta . x$ where $\beta=5 \mathrm{~s}^{-2}$. The work done by $\vec{F}$ is moving the box from $x=2 \mathrm{~cm}$ to $x=5 \mathrm{~cm}$ in joule is-

148730 Consider a force $F=\mathbf{K x}^{3}$. Which acts on a particle at rest. The work done by the force for displacement of $2 \mathrm{~m}$ is.
$\left(\mathrm{K}=\mathbf{2} \mathrm{Nm}^{-3}\right)$

148731 An object of mass 20kg. is displayed by $x=5 t^{2}$ $m$ (here $t$ is time) by the application of a force. Then the ratio of the work done in times $3 \mathrm{~s}$ and $5 \mathrm{~s}$ is-

148728 The ball initially has a velocity of $5 \mathrm{~m} \mathrm{~s}^{-1}$ in the positive $x$-direction and some time later has a velocity of $7 \mathrm{~m} \mathrm{~s}^{-1}$ in the positive y-direction. If the work done by the ball is 48 joule, then the mass of the ball in $\mathrm{kg}$ is

148729 A $1 \mathrm{~kg}$ box placed at the origin starts sliding along $x$-axis under the action of a force $\vec{F}=\vec{F}$. Its acceleration as a function of $x$ is given by $a(x)=\beta . x$ where $\beta=5 \mathrm{~s}^{-2}$. The work done by $\vec{F}$ is moving the box from $x=2 \mathrm{~cm}$ to $x=5 \mathrm{~cm}$ in joule is-

148730 Consider a force $F=\mathbf{K x}^{3}$. Which acts on a particle at rest. The work done by the force for displacement of $2 \mathrm{~m}$ is.
$\left(\mathrm{K}=\mathbf{2} \mathrm{Nm}^{-3}\right)$

148731 An object of mass 20kg. is displayed by $x=5 t^{2}$ $m$ (here $t$ is time) by the application of a force. Then the ratio of the work done in times $3 \mathrm{~s}$ and $5 \mathrm{~s}$ is-

148728 The ball initially has a velocity of $5 \mathrm{~m} \mathrm{~s}^{-1}$ in the positive $x$-direction and some time later has a velocity of $7 \mathrm{~m} \mathrm{~s}^{-1}$ in the positive y-direction. If the work done by the ball is 48 joule, then the mass of the ball in $\mathrm{kg}$ is

148729 A $1 \mathrm{~kg}$ box placed at the origin starts sliding along $x$-axis under the action of a force $\vec{F}=\vec{F}$. Its acceleration as a function of $x$ is given by $a(x)=\beta . x$ where $\beta=5 \mathrm{~s}^{-2}$. The work done by $\vec{F}$ is moving the box from $x=2 \mathrm{~cm}$ to $x=5 \mathrm{~cm}$ in joule is-

148730 Consider a force $F=\mathbf{K x}^{3}$. Which acts on a particle at rest. The work done by the force for displacement of $2 \mathrm{~m}$ is.
$\left(\mathrm{K}=\mathbf{2} \mathrm{Nm}^{-3}\right)$

148731 An object of mass 20kg. is displayed by $x=5 t^{2}$ $m$ (here $t$ is time) by the application of a force. Then the ratio of the work done in times $3 \mathrm{~s}$ and $5 \mathrm{~s}$ is-

148728 The ball initially has a velocity of $5 \mathrm{~m} \mathrm{~s}^{-1}$ in the positive $x$-direction and some time later has a velocity of $7 \mathrm{~m} \mathrm{~s}^{-1}$ in the positive y-direction. If the work done by the ball is 48 joule, then the mass of the ball in $\mathrm{kg}$ is

148729 A $1 \mathrm{~kg}$ box placed at the origin starts sliding along $x$-axis under the action of a force $\vec{F}=\vec{F}$. Its acceleration as a function of $x$ is given by $a(x)=\beta . x$ where $\beta=5 \mathrm{~s}^{-2}$. The work done by $\vec{F}$ is moving the box from $x=2 \mathrm{~cm}$ to $x=5 \mathrm{~cm}$ in joule is-

148730 Consider a force $F=\mathbf{K x}^{3}$. Which acts on a particle at rest. The work done by the force for displacement of $2 \mathrm{~m}$ is.
$\left(\mathrm{K}=\mathbf{2} \mathrm{Nm}^{-3}\right)$

148731 An object of mass 20kg. is displayed by $x=5 t^{2}$ $m$ (here $t$ is time) by the application of a force. Then the ratio of the work done in times $3 \mathrm{~s}$ and $5 \mathrm{~s}$ is-