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4 years ago

Suppose a 1,500 kg speedboat is traveling with a volcity of 13 m/s. what is the speed boat momentum

Physics

1 answer:

aev [14]4 years ago

8 0

Momentum = (mass) x (speed)

Momentum = (1,500 kg) x (13 m/s)

Momentum = 19,500 kg-m/s

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A car is travelling at a speed of 30 m/s. It decelerates at a rate of 12 m/s^2. Calculate the time taken for the car to come to

user100 [1]

Answer:

The answer to your question is: t = 2.5 s

Explanation:

Data

vo = 30 m/s

a = -12 m/s2

t = ?

vf = 0 m/s

Formula

vf = vo + at

Substitution

0 m/s = 30 + (-12)t

Solve it for t -30 = -12t

t = -30 / -12

t = 30/12 = 15/6 = 5/2

t = 2.5 s

8 0

3 years ago

Read 2 more answers

Usain Bolt's world-record 100 m sprint on August 16, 2009, has been analyzed in detail. At the start of the race, the 94.0 kg Bo

kifflom [539]

Answer:

893 Newtons

Explanation:

m = Mass of Usain Bolt = 94 kg

a = Acceleration of Usain Bolt in the first 0.89 seconds = 9.5 m/s²

From Newton's Second law

Force

$F=ma$

$\\\Rightarrow F=94\times 9.5$

$\\\Rightarrow F=893\ N$

The average horizontal force exerted by Bolt against the ground during the first 0.890 s of the race is 893 Newtons

3 0

3 years ago

If an engine cannot be 100%

geniusboy [140]

Answer: Given the evidence in the explanation, I'm pretty sure it's C. It still exists, but in a different form.

Explanation: "Some part of the energy supplied is used to change the internal energy of the system. Some part is also released into the surroundings. Generally, frictional losses are more predominant for the machines being not 100% efficient. This friction leads to the loss of energy in the form of heat, into the surroundings."

3 0

3 years ago

Read 2 more answers

a runner goes from 5 m/s to a stop in 10 seconds. Calculate his acceleration. Show your work and include units.

AnnyKZ [126]

Hope this helps you out