Question

A horizontal force of 24 N acts on a body of mass 5 kg to move it on a horizonatal surface with acceleration of 3 m/s^2 , then the magnitude of the friction force equals ..

Answer 1

Explanation:

$f = ma \\ f - fr = ma \\ 24 - fr = 5 \times 3 \\ 24 - 15 = fr \\ 9 = fr$

9N = friction

Answer 2

Answer:

f = umg

Explanation:

friction force = 24 × 5 × 3

= 360

hope it's helpful

not so good in physics