Question

velocity of an object change form 2 metre per second to 10 metre per second in 4 sec if the mass of the object is 10 kg then how much force will be required to do this?​

Answer 1

Answer:

20N

Explanation:

m=10kg

t=4sec

$F=ma$

$F=m(Δv/t)$

$Δv=vf-vi \\10 - 2 = 8ms ^{ - 1}$

$F=10(8/4)$

$F=10(2)$

$F = 20N$

Answer 2

put 1st equation of motion to find out acceleration and after that .

force=mass*acceleration