Question 1 :
A stone is dropped from a height {tex} h . {/tex} It hits the ground with a certain momentum {tex} P {/tex}. If the same stone is dropped from a height {tex} 100 \% {/tex} more than the previous height, the momentum when it hits the ground will change by:

Question 2 :
To sharpen the blade of a knife by rubbing it against a surface, which of the following will be most suitable?<br>

Question 3 :
A cold soft drink is kept on the balance. When the cap is open, then the weight

Question 5 :
A player caught a cricket ball of mass 150 g moving at the rate of <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5e91780a313cbb7c3feadbe3">. If the catching process be completed in 0.1 s, the force of  blow exerted by the ball on the hands of the player is

Question 6 :
A body of mass $2$ kg is slipping on a frictionless&#160;horizontal table with a velocity of $4$ m/s. The&#160;necessary force in newton to keep the body&#160;moving with the same velocity will be:

Question 7 :
Match the following<table class="wysiwyg-table"><tbody><tr><td>List I</td><td>List II</td></tr><tr><td>a. frictional force</td><td>e. reduction of friction</td></tr><tr><td>b. rolling friction</td><td>f. causes wear and tear</td></tr><tr><td>c. ball bearing</td><td>g. less than kinetic friction</td></tr><tr><td>d. trading of surface</td><td>h. increase of friction&#160;</td></tr><tr><td><br/></td><td><br/></td></tr></tbody></table>The correct match is

Question 8 :
A block of mass 4 kg is kept on a rough horizontal surface. The coefficient of static friction is 0.8. If a force of 19 N is applied on the block parallel to the floor, then the force of friction between the block and floor is

Question 9 :
If the resultant of all the external forces acting on a system of particles is zero, then from an inertial frame, one can surely say that

Question 11 :
The coefficient of static friction {tex} \mu _ { \mathrm { s } } , {/tex} between block {tex} \mathrm { A } {/tex} of mass {tex} 2 \mathrm { kg } {/tex} and the table as shown in the figure is {tex} 0.2 . {/tex} What would be the maximum mass value of block {tex} \mathrm { B } {/tex} so that the two blocks do not move? The string and the pulley are assumed to be smooth and massless. {tex} \left( \mathrm { g } = 10 \mathrm { m } / \mathrm { s } ^ { 2 } \right) {/tex}<br><img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5df345faec37fa6b8da4d8a3"><br>

Question 12 :
A player stops a football weighting {tex}0.5{/tex} kg which comes flying towards him with a velocity of {tex} 10 \mathrm { m } / \mathrm { s } {/tex}. If the impact lasts for {tex} 1 / 50 \mathrm { th } {/tex} sec. and the ball bounces back with a velocity of {tex} 15 \mathrm { m } / \mathrm { s } {/tex}, then the average force involved is

Question 13 :
Rocket engines lift a rocket from the earth surface because hot gas with high velocity

Question 14 :
An aircraft executes a horizontal loop with a {tex} \mathrm { an } {/tex} speed of {tex} 150 \mathrm { m } / \mathrm { s } {/tex} with its wings banked at an angle of {tex} 12 ^ { \circ } . {/tex} The radius of the loop is: {tex} \left( \mathrm { g } = 10 \mathrm { m } / \mathrm { s } ^ { 2 } \right) {/tex}

Question 15 :
The minimum force required to start pushing a body up rough (frictional coefficient {tex} \mu ) {/tex} inclined plane is {tex} F _ { 1 } {/tex} while the minimum force needed to prevent it from sliding down is {tex} F _ { 2 } {/tex}. If the inclined plane makes an angle {tex} \theta {/tex} from the horizontal such that {tex} \tan \theta = 2 \mu {/tex} then the ratio {tex} \frac { F _ { 1 } } { F _ { 2 } } {/tex} is

Question 16 :
If {tex} n {/tex} bullets each of mass {tex} m {/tex} are fired with a velocity {tex} v {/tex} per second from a machine gun, the force required to hold the gun in position is

Question 17 :
A block of mass {tex} \mathrm m {/tex} is placed on a smooth wedge of inclination {tex} \theta {/tex}. The whole system is accelerated horizontally so that the block does not slip on the wedge. The force exerted by the wedge on the block (g is acceleration due to gravity) will be

Question 18 :
A solid sphere, a hollow sphere and a solid cylinder, all having equal mass and radius, are placed at the top of an incline and released. The friction coefficients between the objects and the incline are equal and but not sufficient to allow pure rolling. Greastest time will be taken in reaching the bottom by

Question 19 :
A body of mass 40 gram is moving with a constant velocity of 20 $ms^{-}$ $^{1}$ on a horizontal frictionless table. The force acting on the body in horizontal direction is:

Question 20 :
Inertia is the property of a body linked to tendency of a body