Linear Momentum
Which of the following scenarios will result in the largest impulse?
A force of 5 N applied for 10 seconds
A force of 10 N applied for 2 seconds
A force of 2 N applied for 20 seconds
A force of 25 N applied for 1 second
A force-time graph shows a constant force of 10 N acting on 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
An object experiences an impulse of 20 N⋅s. What is the change in momentum of the object?
5 kg⋅m/s
10 kg⋅m/s
20 kg⋅m/s
40 kg⋅m/s
An object experiences two forces simultaneously: 8 N to the north and 6 N to the east. If these forces are applied for 2 seconds, in what direction is the impulse?
North
East
Northeast
Northwest
A net force of 10 N is applied to an object for 2 seconds. What is the change in momentum of the object?
5 kg⋅m/s
10 kg⋅m/s
20 kg⋅m/s
30 kg⋅m/s
A force-time graph has a triangular shape. The force starts at 0 N, increases linearly to 20 N at 2 seconds, and then decreases linearly back to 0 N at 4 seconds. What is the impulse delivered?
20 N⋅s
40 N⋅s
60 N⋅s
80 N⋅s
A 0.5 kg ball is thrown at a wall with a velocity of 10 m/s and bounces back with a velocity of -8 m/s. What is the change in momentum of the ball?
-1 kg⋅m/s
1 kg⋅m/s
-9 kg⋅m/s
9 kg⋅m/s

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A 1 kg object is dropped from a height of 5 m. Just before it hits the ground, it experiences an impulse due to the ground bringing it to rest. What is the magnitude of this impulse?
Approximately 7 Ns
Approximately 14 Ns
Approximately 21 Ns
Approximately 28 Ns
How is Newton's second law () related to the impulse-momentum theorem?
Newton's second law is completely unrelated to the impulse-momentum theorem.
The impulse-momentum theorem is a completely different concept than Newton's Second Law.
Newton's second law is a special case of the impulse-momentum theorem when mass is constant.
The impulse-momentum theorem is a special case of Newton's second law when mass is constant.
A 2 kg object is moving at a constant velocity. If no net external force acts on the object, what is the rate of change of its momentum?
Constant and non-zero
Increasing
Zero
Decreasing