Energy keeps our school running properly. Without energy computers, smart-boards, printers, and our lights would not work.
The world runs on energy.
<span>Un solid covalent de rețea constă din atomi reținuți împreună de o rețea de legături covalente (perechi de electroni împărțite între atomi de electronegativitate similară) și, prin urmare, pot fi considerați o singură moleculă mare. </span>
force=mass x acceleration
force= 800kg x 4m/s^2= 3200
i think this is the ans :)
Answer:
1. v₂ = 12.43 m/s
2. I₁ = - 80 N.s
3. I₂ = 80 N.s
Explanation:
Consider the following data given in the question:
m₁ = mass of the Cart 1 = 16 kg
m₂ = mass of the Cart 2 = 7 kg
u₁ = velocity of cart 1 before collision = 4 m/s
u₂ = velocity of cart 2 before collision = 1 m/s
v₁ = velocity of cart 1 after collision = - 1 m/s
v₂ = velocity of cart 2 after collision = ?
1.
Applying the law of conservation of momentum:
<u>v₂ = 12.43 m/s</u>
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2.
Impulse of cart 1 = I₁ = m₁(v₁ - u₁)
I₁ = (16 kg)(- 1 m/s - 4 m/s)
<u>I₁ = - 80 N.s</u>
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3.
Impulse of cart 2 = I₂ = m₂(v₂ - u₂)
I₂ = (7 kg)(12.43 m/s - 1 m/s)
<u>I₂ = 80 N.s</u>
Formed where mantle erupts through crust