Advertisements
Advertisements
Question
Two bodies A and B of masses m and M (M ≫ m) have same kinetic energy. Which body will have more momentum?
Advertisements
Solution
Kinetic energy is related to momentum and mass as
p = `sqrt (2 "mk")`
As the kinetic energy of both bodies are same, momentum is directly proportional to square root of mass.
Now, mass of body B is greater than that of body A.
Hence, body B will have more momentum than body A.
APPEARS IN
RELATED QUESTIONS
Name five different forms of energy.
Give one example of a body that has potential energy, in due to its state.
Write an expression for the potential energy of a body of mass m placed at a height h above the earth's surface. State the assumptions made, if any.
Name six different forms of energy?
Name the two groups in which various sources of energy are classified. State on what basis are they classified.
What is solar energy?
What is wind energy?
State the energy changes which take place when:
A stone projected vertically upwards, returns back to the thrower.
A moving body weighing 400 N possesses 500 J of kinetic energy. Calculate the velocity with which the body is moving. (g = 10 ms2)
Obtain an expression for the kinetic energy of a body of mass m moving with a velocity v?
