# How much momentum does a #1 kg# object moving at #10 m/s# have?

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The momentum of a 1 kg object moving at 10 m/s is 10 kg m/s.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- An astronaut with a mass of #75 kg# is floating in space. If the astronaut throws an object with a mass of #35 kg# at a speed of #5/6 m/s#, how much will his speed change by?
- Which has more momentum, a #500kg# object moving at #1/4m/s# or a #50kg# object moving at #20m/s#?
- A ball with a mass of #9 kg# moving at #3 m/s# hits a still ball with a mass of #12 kg#. If the first ball stops moving, how fast is the second ball moving?
- A ball with a mass of #4# #kg# and velocity of #5# #ms^-1# collides with a second ball with a mass of #6# #kg# and velocity of #-1# #ms^-1#. If #20%# of the kinetic energy is lost, what are the final velocities of the balls?
- A 2-kg blob of putty moving 3 m/s slams into a 2-kg blob of putty at rest. What is the speed of the two stuck-together blobs of putty immediately after colliding? What is the speed of the two blobs if the one at rest was 4-kg?

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