A force of 20N gives an object an acceleration of 5 m/s^2.
a. What force would be needed to give the same object an acceleration of 1.0 m/s^2 ?
b. What force would be needed to give an acceleration of 10 m/s^2 ?

Question

A force of 20N gives an object an acceleration of 5 m/s^2.
a. What force would be needed to give the same object an acceleration of 1.0 m/s^2 ?
b. What force would be needed to give an acceleration of 10 m/s^2 ?

anonymous · Answer

are you familiar with Newton's second law?

anonymous · Answer

Yes, I'm just not sure how to solve  this.

anonymous · Answer

Newton's second law states that force = rate of change of momentum. and upon simplification yields the result Force = mass * acceleration.
since you are given the force and the acceleration solve for the mass (m) F= m*a
20 = m* 5
and then use this mass and the same equation  to find the acceleration in part a) of the question.

anonymous · Answer

part a) Force =  m * 1 = _________Newtons
part b ) Force = m* 10 = __________ Newtons

anonymous · Answer

did you understand the method?

anonymous · Answer

yes. thank you!

anonymous · Answer

Its been a pleasure :)