Q.1 संवेग क्या होता है ?
What is Momentum ?
Q.2 किसी m द्रव्यमान की वस्तु जिसका वेग v है का संवेग क्या होगा ?
(a)(mv)² (b) mv² (c)(½)mv² (d) mv
What is the momentum of an object of mass m, moving with a velocity v ?
(a)(mv)² (b) mv² (c)(½)mv² (d) mv
Q.3 बल का मात्रक क्या है?
What is the unit of force ?
Q.4 न्यूटन का दूसरा गति नियम क्या है?
What is the Newton's second law of motion?
Q.5 किसमें अधिक बल की आवश्यकता होगी: 2kg द्रव्यमान वाली वस्तु को 5ms—² की दर से त्वरित करने में या 4kg द्रव्यमान वाली वस्तु को 2ms—² की दर से त्वरित करने में ?
(Hint: F 1 = m1a1, F 2= m2 a2)
Which would require a greater force __ accelerating a 2kg mass at 5ms—² or 4kg mass at 2ms—² ?
(Hint: F 1 = m1a1, F 2= m2 a2)
Q.6 संवेग का SI मात्रक लिखिए ।
Write the SI unit of momentum.
Q.7 न्यूटन बल की परिभाषा दीजिए ?
Difine Newton's force ?
Answer the above questions in English.
Answers
Answer:
it is the product of mass and instanteneousvelocity of an object
mv
newton
force is equal to the rate of change of momentum
accelerating 2kg mass at 5ms-2
kgm-s
it is defined as the time rate of change of momentum
hope it helps
please mark me as the brainliest
Explanation:
Q.1) -» Momentum, product of the mass of a particle and its velocity. Momentum is a vector quantity; i.e., it has both magnitude and direction. Isaac Newton's second law of motion states that the time rate of change of momentum is equal to the force acting on the particle. See Newton's laws of motion.
Q.2) -» What is the momentum of an object of mass m, moving with a velocity v = mv
Q.3) -» The SI unit of force is the newton, symbol N
Q.4) -» Newton's second law of motion can be formally stated as follows: The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object
Q.5) -» The formula for force when mass and acceleration are given is Force (F)= Mass (M)* Acceleration(A).
So the force required for accelerating 2kg mass at 5ms2 is
Force (F)= Mass (M)* Acceleration(A)
= 2×5
= 10N
The force required for accelerating 4kg mass at 2ms2 is
Force (F)= Mass (M)* Acceleration(A)
= 4×2
= 8N
So the force required for 2kg mass at 5ms2 is more than the force required for accelerating 4kg mass at 2ms2.
Q.6) -» The SI unit for momentum is kg · m/s.
Q.7) -» It is defined as that force necessary to provide a mass of one kilogram with an acceleration of one metre per second per second. One newton is equal to a force of 100,000 dynes in the centimetre-gram-second (CGS) system, or a force of about 0.2248 pound in the foot-pound-second (English, or customary) system.