Read the following statements carefully and indicate true or false. True False I

Question

Read the following statements carefully and indicate true or false.

True False If two particles of different masses have equal kinetic energy they also have equal momentum.
True False The momentum of an isolated system is always conserved no matter what kind of force is acting inside the system.
True False A large force always produces a larger impulse on a body than a smaller force.
True False The kinetic energy is always conserved both in elastic collisions and inelastic collisions.
True False The linear momentum of an object is proportional to the mass of the object.
True False If the momentum of a single particle is zero, its kinetic energy may not be zero.
True False If the kinetic energy of a single particle is zero, its momentum must be zero.

Explanation / Answer

1. False. 2. False 3. False 4. False 5. False 6. False 7. False They are all false. PLEASE RATE. Just for the first one, consider a simple example KE = 1/2*mv^2 K1 = 1/2*4*(3)^2 = 18 k2 = 1/2*2*(sqrt 18)^2 = 18 But momentum is just mv which would be k1_m1 = 4*3 = 12 K2_m2 = 2*sqrt 18 = 6 sqrt (2) Those are different. But they're all false, that's just one example. PLEASE RATE.

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