When someone pushes a large rock down a hill what energy change occurs?
1 answer:
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Answer:
i) 5 /
ii) 54
iii) 54
Explanation:
i) ⇒
= 5² ÷ 5 = 5
ii) ⇒
= 108 ÷ 10 = 10.8
,
⇒
10.8 × 5 = 54
iii) F1 = F2 = 54
Answer:
v = 24 m/s, rightwards
Explanation:
Given that,
The mass of TBT explosive = 5 kg
It explodes into two pieces.
One of the pieces weighing 2.0 kg flies off to the left at 36 m/s. Let left be negative and right be positive.
The law of conservation of momentum holds here. Let v be the final speed of the remaining piece. So,
So, the final speed of the remaining piece is 24 m/s and it is in the right direction.