Question

On an object of mass 1 kg moving along x-axis with constant speed 8 m/s, a constant force 2 N is applied in positive y direction. Find its speed after 4 seconds.​

Answer 1

Answer:

16m/s

Explanation:

since the object moves with constant speed therefore net force along X axis is 0 N

along y axis force F = 2N

m= 1kg

therefore acceleration a= 2/1=2m/s²

t= 4s. u= 8m/s

therefore final velocity v= u+at

=8+2*4= 8+8=16m/s