148768 Work done in sliding a $1 \mathrm{~kg}$ block up a rough inclined plane of height $5 \mathrm{~m}$ is $100 \mathrm{~J}$. Work done against the friction is $\left(\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^{2}\right)$

148769 A cricket ball of mass $150 \mathrm{~g}$ moving with a velocity of $12 \mathrm{~m} / \mathrm{s}$ is turned back with a velocity of $20 \mathrm{~m} / \mathrm{s}$ on hitting the bat. The force of the blow lasts for $0.01 \mathrm{~s}$. The force exerted on the ball by the bat is

148770 A mass $2 \sqrt{3} \mathrm{~kg}$ is acted upon by two forces which are inclined to each other at $60^{\circ}$ and each of magnitude $1 \mathrm{~N}$. The acceleration of that mass in SI system is
$\sin 30^{\circ}=\cos 60^{\circ}=0.5$

148771 A body of mass $5 \mathrm{~kg}$ is moving in a straight line. The relation between its displacement and time is $x=\left(t^{3}-2 t-10\right) m$. What is the force acting on it at the end of 5 second?

148768 Work done in sliding a $1 \mathrm{~kg}$ block up a rough inclined plane of height $5 \mathrm{~m}$ is $100 \mathrm{~J}$. Work done against the friction is $\left(\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^{2}\right)$

148769 A cricket ball of mass $150 \mathrm{~g}$ moving with a velocity of $12 \mathrm{~m} / \mathrm{s}$ is turned back with a velocity of $20 \mathrm{~m} / \mathrm{s}$ on hitting the bat. The force of the blow lasts for $0.01 \mathrm{~s}$. The force exerted on the ball by the bat is

148770 A mass $2 \sqrt{3} \mathrm{~kg}$ is acted upon by two forces which are inclined to each other at $60^{\circ}$ and each of magnitude $1 \mathrm{~N}$. The acceleration of that mass in SI system is
$\sin 30^{\circ}=\cos 60^{\circ}=0.5$

148771 A body of mass $5 \mathrm{~kg}$ is moving in a straight line. The relation between its displacement and time is $x=\left(t^{3}-2 t-10\right) m$. What is the force acting on it at the end of 5 second?

148768 Work done in sliding a $1 \mathrm{~kg}$ block up a rough inclined plane of height $5 \mathrm{~m}$ is $100 \mathrm{~J}$. Work done against the friction is $\left(\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^{2}\right)$

148769 A cricket ball of mass $150 \mathrm{~g}$ moving with a velocity of $12 \mathrm{~m} / \mathrm{s}$ is turned back with a velocity of $20 \mathrm{~m} / \mathrm{s}$ on hitting the bat. The force of the blow lasts for $0.01 \mathrm{~s}$. The force exerted on the ball by the bat is

148770 A mass $2 \sqrt{3} \mathrm{~kg}$ is acted upon by two forces which are inclined to each other at $60^{\circ}$ and each of magnitude $1 \mathrm{~N}$. The acceleration of that mass in SI system is
$\sin 30^{\circ}=\cos 60^{\circ}=0.5$

148771 A body of mass $5 \mathrm{~kg}$ is moving in a straight line. The relation between its displacement and time is $x=\left(t^{3}-2 t-10\right) m$. What is the force acting on it at the end of 5 second?

148768 Work done in sliding a $1 \mathrm{~kg}$ block up a rough inclined plane of height $5 \mathrm{~m}$ is $100 \mathrm{~J}$. Work done against the friction is $\left(\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^{2}\right)$

148769 A cricket ball of mass $150 \mathrm{~g}$ moving with a velocity of $12 \mathrm{~m} / \mathrm{s}$ is turned back with a velocity of $20 \mathrm{~m} / \mathrm{s}$ on hitting the bat. The force of the blow lasts for $0.01 \mathrm{~s}$. The force exerted on the ball by the bat is

148770 A mass $2 \sqrt{3} \mathrm{~kg}$ is acted upon by two forces which are inclined to each other at $60^{\circ}$ and each of magnitude $1 \mathrm{~N}$. The acceleration of that mass in SI system is
$\sin 30^{\circ}=\cos 60^{\circ}=0.5$

148771 A body of mass $5 \mathrm{~kg}$ is moving in a straight line. The relation between its displacement and time is $x=\left(t^{3}-2 t-10\right) m$. What is the force acting on it at the end of 5 second?