Table of Contents
- 1 Is momentum doubled when velocity is doubled?
- 2 When the velocity of an Aeroplane is doubled the momentum Mcq?
- 3 When the velocity of an object is doubled by what factor is its momentum changed by what factor is its kinetic energy changed quizlet?
- 4 When the momentum of a body is doubled its kinetic energy is Mcq?
- 5 What happens to momentum when velocity is doubled?
Is momentum doubled when velocity is doubled?
If you increase either mass or velocity, the momentum of the object increases proportionally. If you double the mass or velocity you double the momentum.
When the velocity of a body is doubled its momentum?
If the velocity of a body is doubled then its momentum doubles because velocity is directly proportional to the momentum.
When the velocity of an object is doubled by what factor?
Thus, if the velocity of an object is doubled, its kinetic energy is increased by a factor of four.
When the velocity of an Aeroplane is doubled the momentum Mcq?
Answer: (a) when the velocity of the aeroplane is doubled, its momentum also gets doubled. However, the combined momentum of aeroplane + air is conserved. As the momentum of the aeroplane increases, the momentum of air also increases by an equal amount in the opposite direction.
When the velocity of a body is doubled its kinetic energy?
Detailed Solution The correct answer is Momentum is double. If the velocity is doubled its kinetic energy is multiplied by four times.
Why does distance quadruple when velocity doubles?
Your braking distance will quadruple when your speed doubles because the work that it takes to stop your car means removing all of the kinetic energy. That means that for a fixed maximum braking force, your braking distance will be proportional to the square root of the velocity.
When the velocity of an object is doubled by what factor is its momentum changed by what factor is its kinetic energy changed quizlet?
When the velocity of an object is doubled, by what factor is its momentum changed? By what factor is its kinetic energy changed? The momentum is doubled and the KE is increased by a factor of 4. Which, if either, has greater momentum: a 1-kg ball moving at 2 m/s or a 2-kg ball moving at 1 m/s?
What happens to the kinetic energy when the velocity of the body is doubled at constant mass?
(i) On doubling the mass, at a constant velocity, the K.E. becomes double its original value. (ii) On doubling the velocity, at constant mass, the K.E. becomes (2)2 i.e., 4 times its original value.
When the velocity of an aeroplane is doubled the kinetic energy?
momentum will become double and kinetic energy becomes 4 times.
When the momentum of a body is doubled its kinetic energy is Mcq?
When the momentum of a body is doubled, its kinetic energy increases by 300\%.
When the mass of a body is halved and velocity is doubled then the kinetic energy of the body?
Answers and Solutions Let, mass=m, speed=v KE1= (1/2)mv^2 now, mass= m/2, speed= 2v KE2= (1/2). (m/2)(2v)^2=mv^2=2KE1,i.e., double of initial energy. Answer: Expl: New KE = 1/2.
What happens when the velocity of a body is doubled?
> When the velocity of a body… acceleration is doubled. momentum is doubled. potential energy is doubled. momentum is doubled. Momentum is directly proportional to the velocity, hence if velocity is doubled momentum will be doubled. Was this answer helpful?
What happens to momentum when velocity is doubled?
The momentum (mass times velocity) will double as well and the distance travelled in unit time. Unless, of course, the velocity is in the relativistic range, then doubling the velocity will more than double the momentum because the mass is affected.
What happens to time when acceleration is doubled?
A screwy answer: time is doubled if the acceleration is uniform. In one unit of time, the object will attain a certain velocity. In double that time, the object will attain double the velocity. [The wording of this question sets a fine example for the importance of asking a question properly. Indeed, it is as important as the wording of an answer.
What happens to kinetic energy when mass is doubled?
Kinetic energy is the one half the mass multiplied by the square of the velocity, K=1/2mv2. If mass is doubles, the kinetic energy doubles. If the velocity doubles, the kinetic energy is increase by 22 or 4 times. Therefore, if both the mass and velocity are doubled, the kinetic energy increases by a factor of 8.