Question 1 :
In the case of uniform circular motion, which one of the following physical quantities does not remain constant?<br>
Question 2 :
(1) : In uniform circular motion the kinetic energy of the body is constant.<br/> (2) : In uniform circular motion the tangential force is zero.<br/>
Question 3 :
Assertion(A): In uniform circular motion the particle has zero acceleration.<br/>Reason (R) : Centripetal force is essential to keep a particle in circular motion.<br/>
Question 4 :
The motion of a bus going around a traffic roundabout is curvilinear motion. True or false.
Question 5 :
A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle. The motion of the particle takes place in the plane. It follows that
Question 6 :
Fill in the blank.In circular motion, force is always _______ to the displacement.
Question 9 :
An artificial satellite of the earth releases a packet. If air resistance is neglected, the point where the packet will hit,<br/>
Question 10 :
Uniform Circular Motion refersto a motion of an object in a circle at a constant _________.
Question 11 :
A car starts from rest and accelerates on a straight horizontal track at $5 {m}/{{s}^{2}}$. Find out the distance travel by the car in $8$ seconds?
Question 13 :
The time taken to return to the ground from the maximum height:
Question 14 :
A train is running at full speed when brakes are applied. In the first minute it travels $8\; km$, and in the next minute it travels $3 \;km$. Assuming constant retardation, initial speed of the train is
Question 15 :
A body travelling with uniform acceleration crosses two points $A$ and $B$ with velocities $20\ ms^{-1}$ and $30\ ms^{-1}$ respectively. The speed of the body at mid-point of $A$ and $B$ is:
Question 17 :
A ball is released from the top of a tower of height  $h$ meters. It takes $T$ second to reach the ground. What is the position of the ball in  $T/3$ second?<br/>
Question 18 :
A stone is thrown vertically upwards. When the stone is at a height equal to half of its maximum height its speed will be 10 m/s, then the maximum height attained by the stone is (Take g =10 $m/s^2$)
Question 19 :
A stone is dropped from the top of a tower and one second later, a second stone is thrown vertically downward with a velocity $\displaystyle 20 m/s$.The second stone will overtake the first after travelling a distance of (g= $\displaystyle 10 m/s^{2}$):<br/>
Question 22 :
'The action and reaction are equal in magnitude'. Is this statement true and which law is related with it?
Question 23 :
When a horse pulls a cart, what is the force that helps the horse move forward?
Question 24 :
The action and reaction forces referred to in Newton's third law of motion<br/>
Question 25 :
The engine of a car produces acceleration $4 m/s^2$ in the car. If this car pulls another car of same mass. What will be the acceleration produced?<br>
Question 27 :
Which law is the special case ofNewton's second law of motion ?
Question 28 :
1 newton is the amount of force that produces an acceleration of 1 $ms^{-2}$ in an object of mass:<br/>
Question 29 :
If the net force acting on a body is doubled, the acceleration of the body is
Question 30 :
A body is at rest on the surface of the earth. Which of the following statements is correct?
Question 32 :
If the interatomic spacing in a steel wire is ${ 2.8\times 10 }^{ -10 }$ m. and ${ Y }_{ steal }=2\times 10^{ 11 }N/m^{ 2 }$,then force constant in N/m is-
Question 33 :
Assertion: The third law of motion concludes that the forces occur in pairs of action and reaction.
Reason: The action force is more than the reaction force.
Question 34 :
When an electron and a positron meet at low speed in empty space, they annihilate each other to produce two $0.511-MeV$ gamma rays. What law would be violated if they produced one gamma-ray with the energy of $1.02\, MeV$? 
Question 35 :
An athlete runs some distance before taking a long jump, because:
Question 37 :
What force is required to produce an acceleration of $3 {m}/{{s}^{2}}$ in an object of mass $0.7 kg$?
Question 39 :
The force applied on a body depends on the area over which it acts
Question 42 :
Assertion: A cloth covers a table. Some dishes are kept on it. The cloth can be pulled out without dislodging the dishes from the table.
Reason: For every action there is an equal and opposite reaction.
Question 43 :
A particle moves in the $xy-plane$ under the action of a force $F$ such that the components of its linear momentum $p$ at any time $t$ are $p_{x} = 2\cos t, p_{y} = 2\sin t$. The angle between $F$ and $p$ at time $t$ is
Question 44 :
A skater of mass m standing on ice throws a stone of mass M with a velocity of V in a horizontal direction. The distance over which the skater will move back (the coefficient of friction between the skater and the ice is $\mu$) :<br>
Question 45 :
A body of mass 40 gm is moving with a constant velocity of 2 cm/sec on a horizontal frictionless table. The force on the table is -
Question 46 :
If weight of a body is 1000 dyne, then the mass of the body will be(take g = 10ms$^{-}$ $^{2}$)
Question 47 :
In a gravity free space, a man of mass $M$ standing at a height $h$ above the floor, throws a ball of mass $m$ straight down with a speed $u$. When the ball reaches the floor, the distance of the man above the floor will be
Question 48 :
A particle in equilibrium is subjected tofour forces: $\displaystyle F_{1}= -10\hat k, F_{2} = u \left( \frac{4}{13}\hat i-\frac{12}{13}\hat j+\frac{3}{13}\hat k \right),F_{3}=v \left( -\frac{4}{13}\hat i-\frac{12}{13}\hat j+\frac{3}{13}\hat k \right)$ and $F_{4}=w (\cos \theta\hat i + \sin \theta\hat j)$Then:<br>
