Question
Asked Nov 14, 2019
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A large cruise ship of mass 6.70 ✕ 107 kg has a speed of 10.6 m/s at some instant.

(a) What is the ship's kinetic energy at this time?
 J

(b) How much work is required to stop it? (Give the work done on the ship. Include the sign of the value in your answer.)
 J

(c) What is the magnitude of the constant force required to stop it as it undergoes a displacement of 2.20 km?
 N
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Expert Answer

Step 1

a)

The required kinetic energy is,

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к: Jx10 (10.6 =3.76x10

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Step 2
  1. b)

The amount of kinetic energy will be equal to required work done to s...

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W 3.76x10 J

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Work,Power and Energy

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