Newtons Second Law

[Forthegood]

Dont judge me i am seeking help and seeing how there are 'physicists' among us, i am going take my advantage of this website. Well i am a highschool student and i still dont understand Newtons Second law especially the calculations any recommendations that will help me and make me a goat in this topic because at this point i have given up hope the only marks i score in this topic is the definitions(i understand the definition but the calculations are the problem)

 

[Popbum]

Just multiple the mass (kg, lbs, ounces, etc) by the speed (mph or kph) and that the force, it's just multiplication.

 

[Homunculus_Jr!]

F = m*a, where F is force in Newtons, m is mass in kg, and a is acceleration in m/s^2

These videos do a good job at explaining imo.

Looking at my old physics notes (or at least what I can find of them):

Find the force of a 4000kg truck traveling with an acceleration of 50 m/s^2
F = 4000kg * 50m/s^2 = 200000 N

Find the force of a 0.5 kg ball with an acceleration of 20 m/s^2
F = 0.5kg * 20m/s^2 = 10 N

You can also rewrite the formula as m = F/a or a = F/m

Find the mass of a car if it has a force of 52500 N and acceleration of 35 m/s^2
m = 52500N / 35m/s^2 = 1500 kg

Find the acceleration of a 65kg man with a force of 325 N
a = 325N / 65kg = 5m/s^2

You can look here to convert something to Newtons, Kilograms, or Acceleration

 

[Forthegood]

Just multiple the mass (kg, lbs, ounces, etc) by the speed (mph or kph) and that the force, it's just multiplication.

This doesn't make sense tbh