148732 A circular ring of mass $10 \mathrm{~kg}$ and radius $1 \mathrm{~m}$ is rotating at 210 revolutions in a minute. It is brought to stop in $2 \mathrm{~s}$. The required average power is

148733 A Block of mass $50 \mathrm{~kg}$ is pulled at a constant speed of $4 \mathrm{~m} \mathrm{~s}^{-1}$ across a horizontal floor by an applied force of $500 \mathrm{~N}$ directed $30^{\circ}$ above the horizontal. The rate at which the force does work on the block in watt is

148734 A particle of mass $500 \mathrm{gm}$ is moving in a straight line with velocity $\mathbf{v}=b x^{5 / 2}$. The work done by the net force during its displacement from $x=0$ to $x=4 \mathrm{~m}$ is :
$\text { (Take } b=0.25 \mathrm{~m}^{-3 / 2} \mathrm{~s}^{-1} \text { ) }$

148735 Sand is being dropped from a stationary dropper at a rate of $0.5 \mathrm{kgs}^{-1}$ on a conveyor belt moving with a velocity of $5 \mathrm{~ms}^{-1}$. The power needed to keep belt moving with the same velocity will be:

148732 A circular ring of mass $10 \mathrm{~kg}$ and radius $1 \mathrm{~m}$ is rotating at 210 revolutions in a minute. It is brought to stop in $2 \mathrm{~s}$. The required average power is

148733 A Block of mass $50 \mathrm{~kg}$ is pulled at a constant speed of $4 \mathrm{~m} \mathrm{~s}^{-1}$ across a horizontal floor by an applied force of $500 \mathrm{~N}$ directed $30^{\circ}$ above the horizontal. The rate at which the force does work on the block in watt is

148734 A particle of mass $500 \mathrm{gm}$ is moving in a straight line with velocity $\mathbf{v}=b x^{5 / 2}$. The work done by the net force during its displacement from $x=0$ to $x=4 \mathrm{~m}$ is :
$\text { (Take } b=0.25 \mathrm{~m}^{-3 / 2} \mathrm{~s}^{-1} \text { ) }$

148735 Sand is being dropped from a stationary dropper at a rate of $0.5 \mathrm{kgs}^{-1}$ on a conveyor belt moving with a velocity of $5 \mathrm{~ms}^{-1}$. The power needed to keep belt moving with the same velocity will be:

148732 A circular ring of mass $10 \mathrm{~kg}$ and radius $1 \mathrm{~m}$ is rotating at 210 revolutions in a minute. It is brought to stop in $2 \mathrm{~s}$. The required average power is

148733 A Block of mass $50 \mathrm{~kg}$ is pulled at a constant speed of $4 \mathrm{~m} \mathrm{~s}^{-1}$ across a horizontal floor by an applied force of $500 \mathrm{~N}$ directed $30^{\circ}$ above the horizontal. The rate at which the force does work on the block in watt is

148734 A particle of mass $500 \mathrm{gm}$ is moving in a straight line with velocity $\mathbf{v}=b x^{5 / 2}$. The work done by the net force during its displacement from $x=0$ to $x=4 \mathrm{~m}$ is :
$\text { (Take } b=0.25 \mathrm{~m}^{-3 / 2} \mathrm{~s}^{-1} \text { ) }$

148735 Sand is being dropped from a stationary dropper at a rate of $0.5 \mathrm{kgs}^{-1}$ on a conveyor belt moving with a velocity of $5 \mathrm{~ms}^{-1}$. The power needed to keep belt moving with the same velocity will be:

148732 A circular ring of mass $10 \mathrm{~kg}$ and radius $1 \mathrm{~m}$ is rotating at 210 revolutions in a minute. It is brought to stop in $2 \mathrm{~s}$. The required average power is

148733 A Block of mass $50 \mathrm{~kg}$ is pulled at a constant speed of $4 \mathrm{~m} \mathrm{~s}^{-1}$ across a horizontal floor by an applied force of $500 \mathrm{~N}$ directed $30^{\circ}$ above the horizontal. The rate at which the force does work on the block in watt is

148734 A particle of mass $500 \mathrm{gm}$ is moving in a straight line with velocity $\mathbf{v}=b x^{5 / 2}$. The work done by the net force during its displacement from $x=0$ to $x=4 \mathrm{~m}$ is :
$\text { (Take } b=0.25 \mathrm{~m}^{-3 / 2} \mathrm{~s}^{-1} \text { ) }$

148735 Sand is being dropped from a stationary dropper at a rate of $0.5 \mathrm{kgs}^{-1}$ on a conveyor belt moving with a velocity of $5 \mathrm{~ms}^{-1}$. The power needed to keep belt moving with the same velocity will be: