It the velocity and acceleration have opposite sign, then the object is slowing down
It the velocity is zero at an instant. then the acceleration should also be zero at that instant
II the velocit•t is zero for a tirne interval, then the acceleration is zero at any instant within the time interval
If the position and velocity have opposite sign, then the object is moving towards the origin
6
7
1
5.3
16 s
12 s
8 s
None of these
`s^2 prop t^3`
`s^2 prop t^-3`
`s^3 prop t^2`
`s^3 prop t^(1//2)`
`(u +v)/2`
`(2uv)/( u +v)`
`sqrt(uv)`
zero
30 km/h
24 krn/h
18 krn/h
None of these
100 N
200 N
300 N
20 N
the theory of relativity
Newton's first law
Newton's second law
Newton's third law
velocity
displacement travelled
distance travelled
change in velocity
` 50ms^-1`
`48 ms^-1`
`45 ms^-1`
zero
`[ML^2T^-3]`
`[M^0L^2T^-1]`
`[ML^2T^-1]`
`[ML^2T^-2]`
at rest
rnoving slowly
rnoving with high velocity
rnoving with velocity comparable to velocity of light
1 and 2
1 and 3
only 1
All of the above
couple
torque
impulse
moment of momentum
momentum and acceleration
change of momentum and velocity
rate of change of momentum and external force
rate of change of force and momentum
uniform velocity
uniform acceleration
increasing acceleration
decreasing acceleration
zero velocity
uniform velocity
constant velocity
constant acceleration
uniform
variable
Both (a) and (b)
None of these
`[MLT^-1 ]`
`[ML^-1T]`
`[ML^-1T^-1]`
`[ML^-1]`
`[ML^-2T^-3 ]`
`[ML^-2]`
`[MLT^-1]`
`[MLT^-2]`
force
linear momentum
pressure
angular momentum
dyne
tesla
watt
henry
Impulse
Power
Stress
Pressure
`10^- 15m`
`10^-12` m
`10^-13` rn
`10^- 19` m
Angular momentum
stress
Strain
Work
1 , 2 and 3
2 and 3 only
1 and 2 only
1 only
2 min
4 min
8 min
16 min
Zero
`2.5` kN
`5` kN
`10` kN
Conservation of angular momentum
Conservation of kinetic energy
Conservation of linear momentum
Conservation of velocity
`96 m`
`72 m`
`60 m`
`48 m`
`96 m`
`72 m`
`60 m`
`48 m`
`17 s`
`8 s`
`20 s`
`12 s`
`6 m`
`12 m`
`18 m`
`24 m`
Only 1
Only 2
Both 1 and 2
Neither 1 nor 2
Displacement
Kinetic energy
Acceleration
Velocity
1,2,3
3,1,2
1,3,2
2,3,1
`sqrt(v_1v_2)`
`(v_1+v_2)/2`
`v_2/v_1`
`(2v_1v_2)/(v_1+v_2)`
covers a greater distance
maintains momentum conservation
gains energy by running
gains momentum
`9.46 xx 10^(-15) m`
`9.46 xx 10^15 m`
`9. 46 xx 10^(-13) m`
`9.46 xx 10^13 m`
When `12 g` of carbon is heated in vacuum, there is no change in mass
Weight of platinum wire is the same before and after heating
A sample of air increases in volume when heated at constant pressure but mass remains unchanged
`12 g` of carbon combines with 32 g of oxygen to give 44 g of carbon dioxide
·follows a straight-line path relative to the falling bucket
follows a parabolic path relative to the falling bucket
stops
decreases but continues to flow
`m`
`ms`
`s`
`ms^(-1)`
the book on the table
the book on the Earth
the table on the book
the table on the Earth
`30.5 N`
`40.5 N`
`50.5 N`
`60.5 N`
zero
9.8 kg
10 kg
1 kg
Momentum
Acceleration
Distance covered
Speed
No force is acting on the body
Only weight of the body acts on it
Net downward force is equal to the net upward force
None of the above
approximately `Mg`
less than `Mg`
more than `Mg`
depends on whether the performer stands on one or two feet
along the tangent
along the radius
zero
along the circumference of the circle
linear momentum
angular momentum
energy
mass
the theory of relativity
Newton's first law
Newton's second law
Newton's third law
first law of motion
second law of motion
third law of motion
first, second and third laws of motion
It is zero
It is non-zero
It varies continuously
None of these
Positive acceleration
Negative acceleration
Zero acceleration
None of these
`u^2/(2g)`
`(2g)/u^2`
`(u^2 g)/2`
None of these
`(3g)/2`
`g/3`
`g`
`(2g)/3`
1 and 3
2 and 3
1 and 2
All of these
`2 ms^(-1)`
`1 ms^(-1)`
`sqrt 2 ms^(-1)`
`1/2 ms^(-1)`
625 m
1250 m
2500 m
50 m
accelerated along `hat k` direction
decelerated along `hat k`-direction
decelerated along `hat j`-direction
accelerated along `hat j`-direction
`10` dynes
`10 N`
`120` dynes
`12` dynes
acceleration remains uniform
velocity changes
speed changes
velocity remains uniform
`d le |s|`
`d=|s|`
`d ge |s|`
`d < |s|`
one
Two
Three
zero
may be on an elliptical path
is moving on a straight path without acceleration
is moving on a straight path with acceleration
is moving without any acceleration
The velocity of the particle is uniform
The velocity of the particle is non-uniform
The speed is uniform and the particle is moving on a circular path
The speed is non-uniform and the particle is moving on a straight line path
a non-zero constant
zero
not a constant
None of these
zero
towards the centre of the circle
away from the centre along the radius of the circle
perpendicular to the radius ancl along the velocity
Uniform motion of a particle on a circle
Accelerated motion of a particle which has a non-zero initial velocity
Decelerated motion of a particle which has an initial non-zero velocity
Decelerated motion of a particle which has no initial velocity
`19.25 m`
`7 m`
`3.2 m`
`4.75 m`
`3 m//s`
`3 km//s`
`300 m//s`
`1/3 m//s`
moving with uniform velocity
moving with acceleration
moving with deceleration
executing a periodic motion
a circular path of radius `a`
a circular path of radius `b`
an elliptical path
a straight line
`25` km and `60` km
`95` km and `35` km
`60` km and `25` km
`85` km and `35` km
force
momentum
work done
energy
`ms^(-1)`
`ms^(-2)`
`cms^(-2)`
`kms^(-2)`
10 dynes
10 newtons
120 dynes
12 dynes
force
momentum
work done
energy
Only 1
1 and 3
1, 2 and 4
2 and 4
625 m
1250 m
2500 m
50 m
25 km and 60 km
95 km and 35 km
60 km and 25 km
85 km and 35 km
25 km and 60 km
95 km and 35 km
60 km and 25 km
85 km and 35 km
a uniform acceleration
a non-uniform acceleration
a uniform velocity
a non-uniform velocity
`1 N 1 `kg/`ms^2`
`1 N 1 `kgm/`s^2`
`1 N 1 kgs^2`/m
`1 N 1` kgm`s^2`
`1 N 1 `kg/`ms^2`
`1 N 1 `kgm/`s^2`
`1 N 1 kgs^2`/m
`1 N 1` kgm`s^2`
a uniform acceleration
a non-uniform acceleration
a uniform velocity
a non-uniform velocity
accelerated
uniform
retarded
along the circular tracks
pressure
angular momentum
work
linear momentum
`8 s`
`16 s`
`20 s`
`24 s`
A will cover a greater distance
B will cover a greater distance
both will cover the same distance
distance covered by them will depend on their respective velocities
an accelerated motion
a decelerated motion
a uniform non-zero velocity motion
a zero velocity motion
`10 kg`
`10 sqrt(2) kg`
`2 sqrt(10) kg`
`8 kg`
a straight line
a circle
a parabola
any curve depending upon initial conditions
` (10)/3 `m/s
`60` m/s
infinite
zero
`AB`
`BC`
`CD`
None
`1 N = 1 kg//ms^2`
`1 N = 1 kg-m//s^2`
`1 N = 1 kg -s^ 2//m`
`1 N = 1 kg -m s^2`
`7 m//s ^2`
`1 m//s ^2`
`5 m//s ^2`
`sqrt(7) m//s ^2`
Only 1
1 and 3
1, 2 and 4
2 and 4
25 km and 60 km
95 km and 35 km
60 km and 25 km
85 km and 35 km
force
momentum
work done
energy
`ms^(-1)`
`ms^(-2)`
`cms^(-2)`
`kms^(-2)`