Question 1 :
The __________ of an object does not change from place to place.

Question 2 :
When the system is released the chain descends from right side due to slight unsymmetry. The height climbed by 'A' before chain losses contact with the pulley will be { 'R' may be taken to be small in this part}

Question 4 :
State if the following statements are true or false. Correct the statement if it is false.<br>Like charges always attract each other.

Question 6 :
Assertion: The weight of an object changes from place to place but not mass. Reason: The weight of the object is independent of the value of g

Question 7 :
How much mass (approximately) of a body one can hold, when a force of 1N is applied on it ?

Question 9 :
State whether given statement is True or False.<br/>The change in momentum always takes place in the direction opposite to the force.<br/>

Question 10 :
Assertion: In a free fall, weight of a body becomes effectively zero. Reason: Acceleration due to gravity acting on a body having free fall is zero.

Question 11 :
A block of mass m is attached to one end of a massless spring which is suspended vertically from a fixed point. The mass is held in hand so that the spring is neither stretched nor compressed. Suddenly the support of the hand is removed. The lowest position attained by the mass during oscillation is $4\ cm$ below the point, where it was held in hand. The amplitude of the oscillation is then<br>

Question 12 :
A particle having a mass of $0.5 kg$ is projected with a speed of $ 98 ms^{-1}$ at an angle of $ 60^{o}$. The magnitude of change in momentum of the particle after $10 s$ in $Ns$ is

Question 13 :
A force $'F'$ slops a body of mass $'m'$ moving with a velocity 'u' in a distance $'s'.$ The force required to stop a body of double the mass moving with double the velocity in the same distance is?

Question 14 :
A crane lifts a carton upwards with constant speed.<br>If gravity and the applied force are the only two forces acting on the carton, what can you say must be true about the weight $mg$ and the applied force ${F}_{A}$?

Question 15 :
The one which does not represent a force in any context is:

Question 16 :
The linear momentum $p$ of a body moving in one dimension varies with time $t$ according to the equation $\displaystyle p=a+{ bt }^{ 2 }$, where $a$ and $b$ are positive constants. The net force acting on the body is

Question 17 :
At what minimum acceleration a monkey should slide a rope whose breaking strength is $\displaystyle(\frac{2}{3})^{rd}$ of its weight?<br>

Question 18 :
A spring balance and a physical balance are kept in a lift. In these balances equal masses are placed. If now the lift starts moving upwards with constant acceleration, then

Question 19 :
A student is weighing an object using a spring balance, which shows a reading of $5\ Kg$. If the boy loses grip and the spring balance along with the object falls under gravity, then the weight as measured by the spring balance and mass of the object are respectively :<div>${(g=10m/s^2)}$</div>

Question 20 :
A body of mass 5 kg under the action of constant force $\overrightarrow{F}<br> = F_x \widehat{i}+F_y \widehat{j}$ has velocity at $t=0$s as $\overrightarrow{v}=(6 \widehat{i}-2\widehat{j})m/s$ and at $t=10$s as $\overrightarrow{v}= 6 \widehat{j}m/s$. The force $\overrightarrow{F}$ is :<br>