Question

a body of mass 2kg is moving on a surface with a velocity of 0.5 m/s. What will be the change of frictional force if velocity becomes 0.2 m/s​

Answer 1

Answer:

matter, material substance that constitutes the observable universe and, together with energy, forms the basis of all objective phenomena. ... The three most familiar forms, or states, of matter are solid, liquid, and gas. Heating and cooling a substance may change it from one state to another.

Answer 2

Answer:

HERE YOUR ANSWER

Explanation:

Correct option is B)

From above figure

A→B

u = 4m/s v=0 t=2sec a=?

v=u+at

0=4+a(2)

a=−2m/s

2

so,

force = ma

=2×2=4N