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A 16 kg mass travelling to the right at 5 m/s collides with a 4 kg mass travelling to the left, also at 5 m/s. When the masses collide, they stick together and move along the same line as before.
After the collision:
d) What is the total momentum of the masses?
e) What is the velocity of the masses?

Respuesta :

AnjaliP102

Total momentum of masses after collision is : 100kgm/s

velocity of the masses after collision is : 5m/s

Explanation :

The conservation of momentum principle states that the amount of momentum within a problem domain remains constant; momentum is neither created nor destroyed, but only changed by the action of forces as described by Newton's laws of motion.

To find total momentum ,

we have to find momentum of each object .

Momentum of object with 16kg masses,

p = mv

here m = 16 kg  and v = 5m/s

p1 =16×5

=80kgm/s

momentum of object with 4kg masses, and v =5m/s

p2 = 4 x 5

= 20kgm/s

total momentum is,

P = p1 + p2

80 + 20 = 100kgm/s

total momentum after collision,

100kgm/s (law of conservation of momentum)

velocity of masses is ,

total p= (m1+m2)×v

100 = (16+4)v

v = 100÷20

v = 5m/s

To learn more about momentum refer to :

https://brainly.com/question/20345538

#SPJ9

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