J Jinsung New member Jun 14, 2010 #1 What force is needed to change the velocity of a vehicle of mass 5000kg from a velocity of 20m/s to 30m/s if it takes 5 seconds for the change?
What force is needed to change the velocity of a vehicle of mass 5000kg from a velocity of 20m/s to 30m/s if it takes 5 seconds for the change?
M Macrocompassion New member Jun 14, 2010 #2 The acceleration is the rate of change of the velocity which is (30 - 20) / 5 = 2 m./sec.^2. By Newtons Second Law: Force = Mass x Acceleration = 5,000 x 2 = 10,000 Newtons.
The acceleration is the rate of change of the velocity which is (30 - 20) / 5 = 2 m./sec.^2. By Newtons Second Law: Force = Mass x Acceleration = 5,000 x 2 = 10,000 Newtons.
