Question

When a body is subjected to a force F along the direction of motion, its speed changes
from u to 10m/s and when it is subjected to a force 5F along the direction of motion, its
velocity changes from u to 20m/s. Find the value of u.
a) 5m/s
b) 15m/s
c) 25m/s
d) 30m/s​

Answer 1

Answer:

15m/s it is the answer I think