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kkurt [141]
4 years ago
10

You do 200 joules of work against gravity when lifting your backpack up a flight of stairs that is 4 meters tall. What is the we

ight of your backpack in newtons?
Physics
1 answer:
kotegsom [21]4 years ago
8 0

Answer:

Correct answer:  F = 50 N  weight of backpack

Explanation:

Given:

W = 200 J    work against gravity

h = 4 m  

F = m g = ?

g = 10 m/s²

The work done is a measure of change in this case of potential energy

W = Δ Ep = m g h = F · h ⇒ F = W / h =

F = W / h = 200 / 4 = 50 N

F = 50 N

God is with you!!!

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A 45.00 kg person in a 43.00 kg cart is coasting with a speed of 19 m/s before it goes up a hill. there is no friction, what is
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A piece of wood is has a density of 0.6 g/cm3. when dipped in olive oil of density 0.8 g/cm3, what fraction of the wood is subme
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