A boat with mass of 1 200 kg is traveling at 12 m/s. What is the...
A boat with mass of 1 200 kg is traveling at 12 m/s. What is the magnitude of the force required to stop the boat if it undergoes a displacement of 85 m?
a. 1 000 N
b. 8 500 N
c. 2 000 N
d. 170 N
Homework Answers
Here,
let the force needed is F
Using work energy theorem
change in kinetic energy = force * distance
0.50 * 1200 * (0 - 12^2) = F * 85
F = 1000 N
the magnitude of force needed is a) 1000 N
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