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Lubov Fominskaja [6]
3 years ago
12

A bomb of mass 6kg initially at rest explodes into two fragments of masses 4kg and2kg respectively. If the greater mass moves wi

th a velocity of 5m_s, find the velocity of 2kg mass​
Physics
1 answer:
Katen [24]3 years ago
7 0

Answer:

v = 10 [m/s]

Explanation:

The largest mass is that of 4 [kg], in this way the momentum can be calculated by means of the product of the mass by velocity.

P=m*v\\

where:

P = momentum [kg*m/s]

m = mass = 4 [kg]

v = velocity = 5 [m/s]

Now the momentum:

P=4*5\\P=20[kg*m/s]

This same momentum is equal for the other mass, in this way we can find the velocity.

P=m*v\\20=2*v\\v=10[m/s]

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A man is dragging a trunk up the loading ramp of a mover’s truck. The ramp has a slope angle of 20.0°, and the man pulls upward
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(b) 52 N

Explanation:

Given Data

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The component of F perpendicular to the ramp is Fy.

(a)  

Let the +x-direction be up the incline and the +y-direction by the perpendicular to the surface of the incline.  

Resolve F into its x-component from Pythagorean theorem:  

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Solve for F:  

F= Fx/cos30°  

Substitute for Fx from given data:  

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(b) Resolve r into its y-component from Pythagorean theorem:

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   Substitute for F from part (a):

     Fy = (104 N) (sin 30°)  

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3 years ago
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<em />

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Read 2 more answers
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