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Resistive Force

  • #1

Homework Statement


On Land, a 5000kg amphibious vehicle can accelerate from rest to 10 m/s in 25 sec.


Find...
a)Final Kinetic Energy?
-250,000
b)Avg Power furnished by engine during acceleration?
-10,000
c)If the same power is required to propel the vehicle through water at a constant 2 m/s, What is the magnitude of the resistive force being overcome?

The attempt at a solution
I havent learn or dont know what is the meaning of Resistive Force, I tried searching for a formula online but they do not make sense.
 

Answers and Replies

  • #2
6,054
390
This is a force that resists the motion. What does constant velocity mean?
 
  • #3
speed remains the same, it does not increase or decrease
 
  • #4
6,054
390
Yes, but what does that mean regarding the net force acting on the vehicle?
 
  • #5
instantaneous acceleration?
 

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