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Sunny_sXe [5.5K]
2 years ago
14

An 4.0-kg fish pulled upward by a fisherman rises 1.9 m in 2.4 s, starting

Physics
1 answer:
mina [271]2 years ago
5 0

Answer:

2.64N  

Explanation:

Force = mass * acceleration

Given

mass = 4kg

distance = 1.9m

Time t = 2.4s

Get the acceleration using the equation of motion

S = ut + 1/2at²

1.9 = 0 + 1/2a(2.4)²

1.9 = 5.76a/2

1.9 = 2.88a

a = 1.9/2.88

a = 0.66m/s²

Get the magnitude of the force

Force = 4 * 0.66

Force = 2.64N

Hence the net force acting on the fish is 2.64N  

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Answer:

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3 years ago
A bullet of mass m=26g is fired into a wooden block of mass M=4.7kg. The block is attached to a string of length 1.5m. The bulle
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Answer:

u = 449 m/s

Explanation:

Given,

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Mass of the wooden block,M = 4.7 Kg

height of the block,h = 0.31 m

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Using conservation of energy

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Now, using conservation of momentum to calculate the speed of the bullet.

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Answer:

C

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