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Maslowich
3 years ago
9

Kyle is flying a helicopter and is rising at 5.0m/s when he releases the bag. After 2.0s

Physics
2 answers:
ELEN [110]3 years ago
8 0
A. What is the bag’s velocity?
Answer: 25 m/s 

b. How far has the bag fallen?
Answer: -30 m

c. How far below the helicopter is the bag?
Answer: 20 m below the helicopter

ch4aika [34]3 years ago
5 0
1) v=u+gt = -5 +10*2=15 m/s
2) r=ut+gt^2/2=-5*2+10*2^2/2=-10+20=10m
3) r of heli= vt =5*2=10m
So 10m by bag from answer number 2 plus additional 10m by helicopter equals 20m
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Answer:

<h3>1.43m/s²</h3>

Explanation:

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3 years ago
A horizontal force of magnitude 30.2 N pushes a block of mass 3.50 kg across a floor where the coefficient of kinetic friction i
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Answer:

A) 89.39 J

B) 30.39J

C) 23.8 J

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B) Total thermal energy dissipated by the whole system which includes the floor and the block is given as;

ΔEth = μ_k•mgd

Thus, ΔEth = 0.646 x 3.5 x 9.8 x 2.96 = 65.59J

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ΔEth = ΔEth (Block) + ΔEth (floor)

Thus,

ΔEth (floor) = ΔEth - ΔEth (Block)

ΔEth (floor) = 65.59J - 35.2J = 30.39J

C) The total work done is considered as the sum of the thermal energy dissipated as heat and the kinetic energy of the block. Thus;

W = K + ΔEth

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K = W - ΔEth

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3 0
2 years ago
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Answer:

<h2>Derived quantities are based on fundamental quantities, and they can be given in terms of fundamental quantities.</h2>

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