9)Which has more momentum? A .1 kg toy truck moving at 1012 m/s or a real 2200 kg truck moving at .046 m/s?

The real truck since it has more mass

10)A 120 kg football player tries to dive into the endzone at 7.5 m/s to score a touchdown. A 150 kg player dives out of the endzone into the other player at 5 m/s to try and stop him. They collide at the goalline and the tackler holds on to the player diving into the endzone. Does the player score a touchdown or not?

I'm gonna go with yes

Momentum is M*V. Are you aware of that? Have you done the numbers?

The toy truck's momentum is 101.2 kg m/s

The real truck's momentum is 101.2 kg m/s

They are the same.

As for the football question, explain why you chose "touchdown".

b/c the 120 guy is going faster

yes I did the numbers how did you get:

The toy truck's momentum is 101.2 kg m/s

The real truck's momentum is 101.2 kg m/s

The MOMENTUM of the runner, 120*7.5 = 900 kg m/s, exceeds the momentum of the tsacker in the opposite direction, 50*150 = 750 kg m/s

The net momentum will carry then forward when they are "stuck" together at the goal line.

Momentum is M V. I multiplied M times V.

tsacker = tackler

so they both stop exactly at the goalline or he scores? from what you said he scores

I did the wrong numbers. I changed it to Newtons

I said "The net momentum will carry then forward when they are "stuck" together at the goal line."

Forward means across the goal line. Yes, it's a touchdown.

To determine which object has more momentum in question 9, we need to calculate the momentum of each object.

The momentum of an object is calculated using the formula: momentum = mass × velocity.

For the toy truck:
m = 0.1 kg (mass)
v = 1012 m/s (velocity)
momentum = 0.1 kg × 1012 m/s = 101.2 kg·m/s

For the real truck:
m = 2200 kg (mass)
v = 0.046 m/s (velocity)
momentum = 2200 kg × 0.046 m/s = 101.2 kg·m/s

Both the toy truck and the real truck have the same momentum of 101.2 kg·m/s. Thus, they have the same amount of momentum.

For question 10, we need to consider the law of conservation of momentum. According to this law, the total momentum before and after a collision remains the same if there are no external forces acting on the system.

In this case, the 120 kg player has a momentum of:

m1 = 120 kg (mass)
v1 = 7.5 m/s (velocity)
momentum1 = 120 kg × 7.5 m/s = 900 kg·m/s

The 150 kg player has a momentum of:

m2 = 150 kg (mass)
v2 = -5 m/s (negative velocity as the player is diving out of the endzone)
momentum2 = 150 kg × (-5 m/s) = -750 kg·m/s

The total initial momentum before the collision is the sum of these individual momenta: 900 kg·m/s + (-750 kg·m/s) = 150 kg·m/s.

After the tackler holds on to the player diving into the endzone, their velocities become zero. Hence, the final momentum of the system is also zero.

Since momentum is conserved, the total initial momentum (150 kg·m/s) is equal to the final momentum (zero).

Therefore, the player does not score a touchdown as the tackler manages to stop the player's forward momentum at the goalline.