Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

Force acting on a particle is 5N. If the unit of length and time are doubled and the unit of mass is halved, the find the numerical value of the force in

the new unit.


We know the initial values Given, F=5N=ma Initial value m=m l=l t=t Now new values are l=2l t=2t m=½m Now, F=ma 5=ma 5=m×l/t Now, F=½m×2l/2t F=½(m×l/t) F=½×5 F=2.5N So new value is this
0 0 0
the correct answer is 20N
okay i vl solve it
if the answer is 20 then the question should be changed
yes i agree with u
F = 5N
F = m×a
F = M × L/T²
length and time are doubled
mass is halved
let the new force = Fₓ
Fₓ = M/2 × 2L/4T²
Fₓ = M × L/4T²
new force(Fₓ) = F/4
Numerical value of new force = 5/4 N

0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts