A constant force acting on a body of mass `3 kg` changes its speed from `2ms^(-1)` to `3.5 ms^(-1)` in 25 s. The direction of motion of the body remains unchanged . Calculte magnitutude and direction of the force .

Explanation

`a = 1.5 //25 = 0.06 ms^(-2)`
`F = 3 xx 0.06 = 0.18 N` in the direction of motion .