5. A 1,600 kg car is moving south at 24 m/s. What is its momentum?

(Points : 1)
66 kgm/s south

66 kgm/s north

38,000 kgm/s north

38,000 kgm/s south

Question 6. 6. The velocity of a 150 kg cart changes from 6.0 m/s to 14.0 m/s. What is the magnitude of the impulse that acted on it?
(Points : 1)
900 kgm/s

1,200 kgm/s

3,000 kgm/s

2,100 kgm/s

Question 7. 7. An object's speed is 0.8 m/s, and its momentum is 200 kgm/s. What is the mass of the object?
(Points : 1)
250 kg

160 kg

128 kg

200 kg

1600 * 24 south

150 * 8

m = p/v = 200/.8

Question 5:

Momentum is calculated by multiplying the mass of an object by its velocity. In this case, the car has a mass of 1,600 kg and is moving south at 24 m/s.

Momentum = mass * velocity
Momentum = 1,600 kg * 24 m/s
Momentum = 38,400 kgm/s

Therefore, the correct answer is
38,400 kgm/s south

Question 6:

The magnitude of impulse can be calculated by multiplying the change in velocity by the mass of the object. In this case, the cart has a mass of 150 kg and its velocity changes from 6.0 m/s to 14.0 m/s.

Change in velocity = final velocity - initial velocity
Change in velocity = 14.0 m/s - 6.0 m/s
Change in velocity = 8.0 m/s

Magnitude of impulse = change in velocity * mass
Magnitude of impulse = 8.0 m/s * 150 kg
Magnitude of impulse = 1,200 kgm/s

Therefore, the correct answer is
1,200 kgm/s

Question 7:

To calculate the mass of the object, we can rearrange the momentum formula, which is momentum = mass * velocity. In this case, the speed of the object is given as 0.8 m/s and its momentum is given as 200 kgm/s.

Momentum = mass * velocity
200 kgm/s = mass * 0.8 m/s

To isolate the mass, we divide both sides of the equation by 0.8 m/s.

mass = 200 kgm/s / 0.8 m/s
mass = 250 kg

Therefore, the correct answer is
250 kg

To find the momentum of an object, you need to multiply its mass and its velocity.

For question 5, the car has a mass of 1,600 kg and it's moving south at a velocity of 24 m/s. So, you would multiply the mass (1,600 kg) by the velocity (24 m/s) to get the momentum.

Momentum = mass x velocity
Momentum = 1,600 kg x 24 m/s = 38,400 kgm/s

Since the car is moving south, the answer would be 38,400 kgm/s south.

For question 6, you need to calculate the change in velocity (∆v) and multiply it by the mass.

The change in velocity (∆v) is 14.0 m/s - 6.0 m/s = 8.0 m/s.

Momentum = mass x ∆v
1,200 kgm/s = mass x 8.0 m/s

Rearranging the equation to solve for mass:
mass = 1,200 kgm/s / 8.0 m/s = 150 kg

So, the mass of the cart is 150 kg.

For question 7, you need to rearrange the equation for momentum to solve for mass.

Momentum = mass x velocity
200 kgm/s = mass x 0.8 m/s

Rearranging the equation to solve for mass:
mass = 200 kgm/s / 0.8 m/s = 250 kg

So, the mass of the object is 250 kg.

DIE