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victus00 [196]
3 years ago
15

How do you calculate deceleration?

Physics
2 answers:
yarga [219]3 years ago
8 0
Change in velocity divided by time

So to work out the Δvelocity you do final speed- initial speed

This will give you a negative value as deceleration is the same as the minus value of acceleration
Sunny_sXe [5.5K]3 years ago
5 0
Deceleration = Change in velocity(u-v) / time taken(t)

initial velocity - final velocity / time
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A balsa wood raft is 1.50 m long, 1.00 m wide, and 0.120 m high. the density of balsa is 380 kg/m^3. what is the mass of the raf
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Answer:

the mass of the raft is 68.4 kg

Explanation:

Since Mass is defined as Volume times Density, start by calculating the volume of the raft:

Volume = length x width x high = 1.5 m x 1.0 m x 0.12 m = 0.18 m^3

and now multiply it times the given density in order to find its mass:

Mass = Volume x Density = 0.18 m^3 x 380 kg/m^3 = 68.4 kg.

Notice that the m^3 units cancel out (they are in numerator and in denominator) leaving just the kg (a unit of mass) in the answer.

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4 years ago
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Hope this helps

have a great day

~Zero

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3 years ago
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3 years ago
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