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Which has more momentum, an object with a mass of #5kg# moving at #15m/s# or an object with a mass of #16kg# moving at #7m/s#?

Answer 1

Isabella Alvarez

See below.

Momentum is given as:

#p=mv#

Where:

#bbp# is momentum, #bbm# is mass in kg and #bbv# is velocity in #ms^-1#

So we have:

#p=5kgxx(15m)/s=(75kgm)/s=75kgms^(-1)#

#p=16kgxx(7m)/s=(112kgm)/s=112kgms^(-1)#

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Answer 2

Adam Arnold

To calculate momentum, you use the formula: momentum = mass × velocity.

For the first object: momentum = 5kg × 15m/s = 75 kgm/s For the second object: momentum = 16kg × 7m/s = 112 kgm/s

Thus, the object with a mass of 16kg moving at 7m/s has more momentum.

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Answer from HIX Tutor

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.