change in momentum?

Question

Idetical forces act for the same length of time on two different masses. The change in momentum of smaller mass is?
a. smaller than that of larger mass, but not zero
b.larger than the change of momentum of the larger mass.
c. equal to the change of momentum of the larger mass

Answer 1

A "Force" is just another way of saying something that causes a change in momentum, which is exactly what it is.
F = dP/dt
A force causes an object's momentum to change with respect to time.

Momentum = mass * velocity
P = mv
Since the object's mas does not change in time, the only thing left would be if the velocity of the object change (acceleration), and that is exactly what happens.

If you have two identical forces applied on two objects for equal lengths of time, the change in both objects' momentums will be equal,
F = d(P1)/d(m1) = d(P2)/d(m2)
Although the final velocity of the objects will be different for different masses, their momentums will be the same.

Answer is C,
Both masses will experience an equal change in momentum.

Answer 2

Force is rate of change in momentum.

Change in momentum/ time.

What we have to keep in mind is that the force is external. If a force acts on a body A, then the force is external to A. But the force is measured by the change in momentum of the body A in a given time. We are not bothered about the agency which is causing the force.

Therefore, the change in the momentum will be the same whatever be the mass of the body on which the force acts given a force and time.

The force is defined only by the change in the body on which the force acts.

Answer 3

Impulse The change in momentum is called the impulse and is given the physics code Dp. We can define Newton’s Second Law in terms of change of momentum: Force = change in momentum __________________ time interval Þ Impulse (Ns) = Force (N) x time interval (s) In code: Dp = FDt Momentum is the product between mass and velocity. Being a vector quantity, it has a direction, and the direction is very important when doing momentum calculations. Momentum is not a thing that we can see, but it does explain many things that go on in physics. Momentum (kg m/s) = mass (kg) x velocity (m/s) Units are kilogram metres per second (kg m/s) or newton seconds (Ns). We can show that the units are the same.

Answer 4

C
note; in collison forces are always equal and opposite.The force lost by one mass is equal to the force gained of the other mass . If we multiplied the force lost by the distance they traveled you have the energy lost by one mass equal the energy gained by the other mass.

Answer 5

c. equal

change in momentum=Force x change in time

if the forces were equal and the length over which they were exerted were equal, the changes in momentum are equal.