This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
The horizontal floor has a frictional force F that inhibits the movement of the cart.

Acceleration of cart = P - F = 0 as the cart moves with constant velocity and acceleration is 0
                   So F = P

When a force of 1.2 P acts on the cart, acceleration a of the cart is
                1.2 P - F = m a
               1.2 P - P = 20kg * 0.05 m/sec²

                P = 1/0.2 = 5 Newtons

2 5 2
what does it mean "1.2P - F = m a"?
net force or resultant of forces 1.2P and Frictional force, causes an acceleration a in the cart.
are u 11th class manish?