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Tanya Arora
Subject: Science
, asked on 31/10/17
Respected Meritnation expert, I know how is momentum calculated but, I am not able to get what exactly is Momentum? What is its definition? Kindly help.
Answer
1
Bidipta Konar
Subject: Science
, asked on 29/10/17
PLZ ANSWER 4 a) & b)
Answer
1
Bidipta Konar
Subject: Science
, asked on 29/10/17
PLZ ANSWER 3 a) & 3 b) fast plzz....
Q.3. a) If a spring balance has 17 divisions measuring 51 gwt, then how many divisions will measure 18 gwt?
b) A force of 5 N gives a mass
${m}_{1}$
an acceleration of 8 m/
${s}^{2}$
, and a mass
${m}_{2}$
an acceleration of 24 m/
${s}^{2}$
. What acceleration would it give if both the masses are tied together?
Answer
1
Bidipta Konar
Subject: Science
, asked on 29/10/17
PLZ ANSWER this.....fast
Q.2. What happens to the force between two objects, if
(i) the mass of one object is doubled?
(ii) the distance between the objects is doubled and tripled?
(iii) the masses of both objects are doubled?
Answer
1
Snigdha
Subject: Science
, asked on 26/10/17
Two balls, A and B are moving towards each other with some constant velocities on a smooth horizontal floor.If they have different masses, then during collision
a)Rate of change of momentum of A is equal to rate of change of momentum of B in magnitude.
b)Change of momentum of A is greater than the change of momentum of B in magnitude.
c)Acceleration of A is always equal to acceleration of Bin magnitude.
d)Rate of change of momentum of A is greater than rate of change of momentum of B in magnitude.
Answer
2
S.a. Sathiya Selvam
Subject: Science
, asked on 26/10/17
Derive Newton's first law of motion from the mathematical expression of the second law of motion?
Answer
1
Sneha Roychowdhury
Subject: Science
, asked on 25/10/17
Is it possible for a body to have variable velocity but constant acceleration ?
Answer
4
Sunil Joshi
Subject: Science
, asked on 23/10/17
Sir, is mass directly proportional to inertia, as if mass increases inertia also increases. If they are not directly proportional why sir and if they are can we say that Mass/Inertia =Constant , sir
Answer
1
Ravreet
Subject: Science
, asked on 23/10/17
Plz solve 3rd ques.
Q.3. A bullet of mass 50 g is fired horizontally with a speed of 540 km/h from a gun of mass 5 kg. The recoil speed of the gun is
(1) 5.4 m/s
(2) 1.5 m/s
(3) 1.5 km/h
(4) 5400 km/h
Answer
1
Sunil Joshi
Subject: Science
, asked on 23/10/17
Sir, can we say that Mass/Inertia=Constant?
Answer
1
Swatee Sahu
Subject: Science
, asked on 18/10/17
draw a velocity vs time graph for an object in uniform motion. show that the velocity of time graph gives acceleration of the body
Answer
1
Swatee Sahu
Subject: Science
, asked on 18/10/17
convert 1N = 10^5 dync
Answer
1
Swatee Sahu
Subject: Science
, asked on 18/10/17
the second law gives a method to measure force as a product of mass and acceleration. comment
Answer
2
Swatee Sahu
Subject: Science
, asked on 15/10/17
define the term mass of a body . will the mass of a body will change in postion of surrounding
Answer
1
Swatee Sahu
Subject: Science
, asked on 15/10/17
two bodies A and B are of same mass. but moving with a velocity vm/s and 5m/s . compare their inertia and momentum
Answer
1
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What are you looking for?

Q.3. a) If a spring balance has 17 divisions measuring 51 gwt, then how many divisions will measure 18 gwt?

b) A force of 5 N gives a mass ${m}_{1}$ an acceleration of 8 m/${s}^{2}$, and a mass ${m}_{2}$ an acceleration of 24 m/${s}^{2}$. What acceleration would it give if both the masses are tied together?

Q.2. What happens to the force between two objects, if

(i) the mass of one object is doubled?

(ii) the distance between the objects is doubled and tripled?

(iii) the masses of both objects are doubled?

a)Rate of change of momentum of A is equal to rate of change of momentum of B in magnitude.

b)Change of momentum of A is greater than the change of momentum of B in magnitude.

c)Acceleration of A is always equal to acceleration of Bin magnitude.

d)Rate of change of momentum of A is greater than rate of change of momentum of B in magnitude.

Q.3. A bullet of mass 50 g is fired horizontally with a speed of 540 km/h from a gun of mass 5 kg. The recoil speed of the gun is

(1) 5.4 m/s

(2) 1.5 m/s

(3) 1.5 km/h

(4) 5400 km/h

Sir, can we say that Mass/Inertia=Constant?