In Which Situation Would There Be The Greatest Change In Momentum?

I. QUESTIONS

Explain why the following statements are TRUE or FALSE. Write your answer below each statement:

a. The greatest change in momentum will but be produced by a larger strength acting over a short fourth dimension.

False. The greatest alter would be a larger force over a large time. This can be proven in the impulse equation (Forcefulness vs time).

b. When a golf club hits a golf ball, the change in momentum of the ball is smaller than the change in momentum of the club.

False, because the change in momentum of the ball is much greater because information technology was at balance. It went from zero momentum to a lot (however much the mass is times the velocity given to it by the club). The club doesn't have much of a change in momentum because the golf ball has such a pocket-size mass compared to the social club and there was no velocity going towards the social club.

c. A boy is standing on roller blades and is holding a heavy medicine brawl. If he throws the medicine brawl horizontally to the right, his resulting motion be to the right also.

Simulated. If the boy were to throw the brawl to the right while on roller blades, he would move away from the brawl at the aforementioned velocity every bit he threw the ball (if the brawl happens to take the same mass as the boy).

d. Total momentum is ever conserved between any two objects involved in a collision.

True, in the two collisions that nosotros have learned, that is. If one object is moving left and one object is moving correct and they had the same mass and velocity, then they would cease. The momentum is withal conserved notwithstanding considering one object has a negative momentum (negative management; to the left) and one object has positive momentum (positive direction; to the correct) and added together they would cancel to equal 0 momentum, which is the full at the outset, and the combined at the finish.

e. The merely units that can be used for impulse are North.s since we are multiplying a force times time.

True, because force is measured in Newtons and seconds are always the unit of time used in measuring time in situations involving impulse.

II. Problem

Solve the trouble showing all your piece of work:
1. Write down the data,
2. Customize the Conservation of Momentum equation for the situation,
3. Solve the COM equation for the unknown quantity,
4. Substitute and summate!

A 15 g marble moves to the correct at three.5 g/s and makes a head-on collision with a 22 g marble. The final velocity of the 15 grand marble is 5.4 m/south to the left, and the final velocity of the 22 g marble is 2.0 thou/south to the right.

a. Calculate the initial velocity of the 22 g marble.