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n200080 [17]
3 years ago
11

David hops in his 600-kg dune buggy and travels 20 m/s to the east.  Meanwhile, Serap drives her 500-kg dune buggy at 30 m/s eas

t and tries to catch David.
What is davids momentum?

what is serap's momentum

what is the total momentum of the entire system?
​
Physics
1 answer:
san4es73 [151]3 years ago
7 0

1) David's momentum is 12,000 kg m/s east

2) Serap's momentum is 15,000 kg m/s east

3) The total momentum is 27,000 kg m/s east

Explanation:

1)

The momentum of an object is given by

p=mv

where

m is the mass of the object

v is its velocity

In this problem, we have:

m = 600 kg is the mass of David+his dune buggy

v=20 m/s is their velocity (taking east as positive direction)

Therefore, David's momentum is:

p_d = (600)(20)=12,000 kg m/s

And the direction is the same as the velocity (east).

2)

Again, we can use the same equation:

p=mv

where this time

m is the mass of Serap+dunebuggy

v is their velocity

In this problem,

m = 500 kg is the mass of Serap + dunebuggy

v = 30 m/s is their velocity (positive since it is also in the east direction)

Substituting, we find

p_s = (500)(30)=15,000 kg m/s

And the direction is the same as the velocity (east).

3)

The total momentum of the entire system is given by

p = p_d + p_s

where

p_d is David's momentum

p_s is Serap's momentum

In this problem, we have the following data, found in the previous parts:

p_d = 12,000 kg m/s

p_s = 15,000 kg m/s

The two momentum have same direction (east), so we can simply add them together to find the total momentum:

p=12,000 + 15,000 = 27,000 kg m/s

And the direction is still East.

Learn more about momentum:

brainly.com/question/7973509

brainly.com/question/6573742

brainly.com/question/2370982

brainly.com/question/9484203

#LearnwithBrainly

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