KCET SERIES Physics
Laws Of Motion
21 previous year questions.
Volume: 21 Ques
Yield: High
High-Yield Trend
1
2021 1
2020 1
2019 2
2018 1
2017 1
2016 1
2014 1
2013 2
2011 1
2009 2
2008 2
2005 1
2004 1
2001 2
1998 Chapter Questions 21 MCQs
01
PYQ 1997
medium
physics ID: kcet-199
Maximum and minimum values of the resultant of two forces acting at a point are and respectively. Then smaller force is equal to
1
2 N
2
5 N
3
2.1 N
4
4 N
02
PYQ 1998
medium
physics ID: kcet-199
and are three coplanar forces acting at a point and are in equilibium. Given
, the value of (in wt) is
1
0.9659
2
2
3
1
4
44563
03
PYQ 1998
medium
physics ID: kcet-199
A light body A and a heavy body B have equal linear momentum. Then the K.E. of the body A
1
is smaller than that of B
2
is zero
3
is equal to that of B
4
is greater than that of B.
04
PYQ 2001
medium
physics ID: kcet-200
The resultant of two forces and is . If the first force is doubled, then the resultant is also doubled. The angle between the two forces is
1
180
2
90
3
120
4
60
05
PYQ 2004
medium
physics ID: kcet-200
Two equal forces ( each) act at a point inclined to each other at an angle of . The magnitude of their resultant is _____
1
2P
2
P
3
P/2
4
P/4
06
PYQ 2005
medium
physics ID: kcet-200
A student unable to answer a question on Newton's laws of motion attempts to pull himself up by tugging on his hair. He will not succeed
1
as the force exerted is small
2
the frictional force, while gripping, is small
3
Newton's law of inertia is not applicable to living beings
4
as the force applied is internal to the system
07
PYQ 2005
medium
physics ID: kcet-200
The given figure is the part of a horizontally stretched net. Section is stretched with a force of . The tensions in the sections and are
1
10 N, 11 N
2
10 N, 6 N
3
10 N, 10 N
4
can't be calculated due to insufficient data
08
PYQ 2008
easy
physics ID: kcet-200
A body of mass is accelerated upon by a constant force, travels a distance of in the first second and a distance of in the third second. The force acting on the body is
1
2 N
2
4 N
3
6 N
4
8 N
09
PYQ 2008
easy
physics ID: kcet-200
A mass of is suspended from a spring balance. It is pulled aside by a horizontal string so that it makes an angle of with the vertical. The new reading of the balance is
1
2
3
4
10
PYQ 2009
easy
physics ID: kcet-200
Three concurrent co-planar forces and acting along different directions on a body
1
can keep the body in equilibrium if 1 N and 2 N act at right angles.
2
cannot keep the body in equilibrium
3
can keep the body in equilibrium if 1 N and 3 N act at an acute angle.
4
can keep the body in equilibrium if 2 N and 3 N act at right angles
11
PYQ 2011
medium
physics ID: kcet-201
The resultant of two forces acting at an angle of is wt and is perpendicular to one of the forces . That force is .......
1
2
3
4
12
PYQ 2011
easy
physics ID: kcet-201
Block of mass is placed over block of mass . The combination is placed over a rough horizontal surface. Coefficient of friction between and the floor is . Coefficient of friction between and is . A horizontal force of is applied on block . The force of friction between and is
1
100 N
2
40 N
3
50 N
4
zero
13
PYQ 2013
medium
physics ID: kcet-201
In a lift moving up with an acceleration of a ball is dropped from a height of .The time taken by ball to reach the floor of the lift is........(nearly)
1
0.3 second
2
0.2 second
3
0.16 second
4
0.4 second
14
PYQ 2014
medium
physics ID: kcet-201
A person is driving a vehicle at uniform speed of on a level curved track of radius The coefficient of static friction between tyres and road is Will the person slip while taking the turn with the same speed ? Take Choose the correct statement.
1
A person will slip if
2
A person will slip if
3
A person will slip if
4
A person will not slip if
15
PYQ 2016
medium
physics ID: kcet-201
A bomb at rest explodes into two pieces of and . If the momentum of piece is , the kinetic energy of the piece is
1
25 J
2
20 J
3
50 J
4
40 J
16
PYQ 2017
easy
physics ID: kcet-201
A body of mass . is suspended using a spring balance inside a lift at rest. If the lift starts falling freely, the reading of the spring balance is
1
#ERROR!
2
> 50 kg
3
< 50 kg
4
0
17
PYQ 2018
medium
physics ID: kcet-201
A block rests on a rough inclined plane making an angle of with the horizontal. The coefficient of static friction between the block and the plane is 0.8. If the frictional force on the block is 10 N, the mass of the block is
1
1 kg
2
2 kg
3
3 kg
4
4 kg
18
PYQ 2018
medium
physics ID: kcet-201
A man weighing 60 kg is in a lift moving down with an acceleration of . The force exerted by the floor on him is
1
588 N
2
480 N
3
Zero
4
696 N
19
PYQ 2019
easy
physics ID: kcet-201
An object with mass 5 kg is acted upon by a force, . If its initial velocity at t = 0 is , the time at which it will just have a velocity along y-axis is
1
2 s
2
5 s
3
15 s
4
10 s
20
PYQ 2020
medium
physics ID: kcet-202
One end of a string of length is connected to a particle of mass �m� and the other to a small peg on a smooth horizontal table. If the particle moves in a circle with speed �v�, the net force on the particle (directed towards the centre) is : (T is the tension in the string)
1
T
2
3
4
0
21
PYQ 2021
easy
physics ID: kcet-202
Two bodies of masses are placed at the vertices and of an equilateral triangle . A third body of mas is placed at the centroid of the triangle. If , where should a fourth body of mass be placed so that the resultant force on the body is zero?
1
At C
2
At a point on the line CG such that
3
At a point P on the line CG such that PG = 0.5 m
4
At a point P on the line CG such that P G = 2 m