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Illusion [34]
2 years ago
14

If two people, mass of 70 kg and 85 kg respectively, approach each other with speeds of 4 m/s and 7 m/s, what is the total momen

tum of the two person system? Give the momentum of each and then the total momentum.
Physics
1 answer:
Tems11 [23]2 years ago
5 0

Answer:

a. Momentum A = 280 Kgm/s.  

b. Momentum B = 595 Kgm/s.

c. Total momentum = 875 Kgm/s.

Explanation:

Let the two people be A and B respectively.

<u>Given the following data;</u>

Mass A = 70kg

Mass B = 85kg

Velocity A = 4m/s

Velocity B = 7m/s

Momentum can be defined as the multiplication (product) of the mass possessed by an object and its velocity. Momentum is considered to be a vector quantity because it has both magnitude and direction.

Mathematically, momentum is given by the formula;

Momentum = mass * velocity

a. To find the momentum of A;

Momentum \; A = 70 * 4

<em>Momentum A = 280 Kgm/s. </em>

b. To find the momentum of B;

Momentum \; B = 85 * 7

<em>Momentum B = 595 Kgm/s.</em>

c. To find the total momentum of the two persons;

Total \; momentum = Momentum \; A + Momentum \; B

Substituting into the equation, we have;

Total momentum = 280 + 595

<em>Total momentum = 875 Kgm/s</em>.

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garik1379 [7]

Answer:

a) The strength of gravity decreases if one moved away from Jupiter

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Where;

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From the equation, we have that the gravitational strength varies inversely with the square of the separation distance between two bodies

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Similarly as the body falls into Jupiter, R, reduces the gravitational strength increases.

7 0
2 years ago
How much power is required to lift a 60 kg bed to the top of a 3 meter flight of stairs in 10 seconds?
Zigmanuir [339]

Answer:

176.58Watts

Explanation:

Power= work done /time

Where mass(m)=60kg

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Power= (60kg) * (9.81m/s^2) * (3m)/10s

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8 0
3 years ago
An object with a mass m slides down a rough 370 inclined plane where the coefficient of kinetic friction is 0.20. If the plane i
Svetllana [295]

Answer:

v \approx 9.312\,\frac{m}{s}

Explanation:

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K_{A} + U_{g,A} = K_{B} + U_{g,B} + W_{loss}

K_{B} = K_{A} + U_{g,A}-U_{g,B} - W_{loss}

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v = \sqrt{2\cdot g \cdot s \cdot (\sin \theta - \mu_{k}\cdot \cos \theta)}

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3 0
3 years ago
Is there an eclipse happening soon in England
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3 0
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