Linear Momentum
A 2 kg object's momentum changes at a rate of 6 kg⋅m/s². What is the net force acting on the object?
2 N
3 N
6 N
12 N
A force acting on an object is described by the function N, where is in seconds. What is the impulse delivered to the object between s and s?
4 N⋅s
6 N⋅s
8 N⋅s
12 N⋅s
A momentum-time graph has a varying slope. What does this indicate about the net force?
The net force is constant.
The net force is zero.
The net force is changing over time.
The net force is infinite.
An object experiences an impulse of 10 N⋅s. What is the magnitude of the object's change in momentum?
5 kg⋅m/s
10 kg⋅m/s
20 kg⋅m/s
100 kg⋅m/s
A stationary box is suddenly pushed with a net external force. What happens to the box's momentum?
The momentum remains zero.
The momentum increases in the direction of the force.
The momentum decreases in the direction opposite to the force.
The momentum oscillates back and forth.
A complex, non-constant force acts on an object. To determine the impulse delivered, which method is most appropriate?
Multiply the maximum force by the total time.
Calculate the average force and multiply by the total time.
Integrate the force function over the time interval.
Divide the force by the time interval.
A net force acts on an object in the negative x-direction. In which direction does the impulse point?
Positive x-direction
Negative x-direction
Positive y-direction
Negative y-direction

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A force-time graph shows a complex curve. To find the impulse, which method is most accurate?
Estimate the average force and multiply by the time interval.
Divide the maximum force by the time interval.
Use numerical integration techniques to find the area under the curve.
Assume the force is constant and use .
A constant force of 10 N is applied to an object for 5 seconds. What is the impulse delivered to the object?
2 N⋅s
5 N⋅s
10 N⋅s
50 N⋅s
A force-time graph shows a rectangle with a height of 5 N and a width of 4 s. What is the impulse delivered?
1 N⋅s
9 N⋅s
20 N⋅s
25 N⋅s