Question

Asked Nov 14, 2019

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A large cruise ship of mass 7.00 ✕ 10^{7} kg has a speed of 12.4 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 3.30 km?

N

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 3.30 km?

N

Step 1

Given

m=7×10^{7}kg

v=12.4m/s

Step 2

a)

The expression for the kinetic energy of the system is

Step 3

b)

The expression for the work d...

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