Correct Answer: D — p² / 2m
Explanation
Momentum {
p) of a particle is given by: p = m v
where:
· m = mass of the particle
· v = velocity of the particle
So, velocity: v = p / m
The kinetic energy {
K) of a particle is: K = (1/2) m v²
Substitute v = p / m:
K = (1/2) m × (p / m)² K = (1/2) m × (p² / m²) K = p² / 2m
English
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150 Marks
150 Mins English English150 Questions150 Marks150 Mins English English150 Questions150 Marks150 Mins EnglishA particle is found to be at rest when observed from a reference frame S1 and the same particle is found to move with a constant velocity when observed from another frame S2. Which of the following statements is true?
In Newton’s third law of motion the force acting on two bodies is _____.
Which law states that ‘Every body in the universe attracts every other body with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.’?
The dimension of angular impulse is
The laws of motion describe how objects behave when they are in motion. Who among the following is credited with the formulation of these laws?
The motion of the moon around the earth is due to the:
What is the momentum p, of an object of mass m, moving with a velocity v ?
Suggested Test Series
Suggested Test Series
A particle is found to be at rest when observed from a reference frame S1 and the same particle is found to move with a constant velocity when observed from another frame S2. Which of the following statements is true?
In Newton’s third law of motion the force acting on two bodies is _____.
Which law states that ‘Every body in the universe attracts every other body with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.’?
The dimension of angular impulse is
The laws of motion describe how objects behave when they are in motion. Who among the following is credited with the formulation of these laws?
The motion of the moon around the earth is due to the:
What is the momentum p, of an object of mass m, moving with a velocity v ?
