Question

14. A constant force acting on a body of mass of 5 kg
chanpe its speed from 5 mrto 10 m r in 10
without changing the direction of motion. The force
acting on the body is
(a)1.5N (b) 2 N (c) 25N (d) 5N​

Answer 1

Answer:

Force = mass × acceleration

Now,

from 1st equation of motion

V = U + at

10 = 5 + a × 10

a = 0.5 ms-2

Force = 0.5 × 5

Force = 2.5 N