Question

A passenger is pushing a 40 kg cart, with a force of 600 N. Another student measures the speed of the cart, and finds that the cart is only accelerating at 3 m/s2. How much friction must be acting on the cart?​

Answer 1

Answer:

Friction of 480N is acting on the cart.

Explanation:

mass = 40kg

Acceleration = 3 m/s^2

applied force = 600N

Net Force = mass * Acceleration

                 = 40 * 3

                 = 120 N

frictional force = Applied Force - Net Force

                        = 600N - 120N

                        = 480N

Hence the frictional force acting on the cart is 480N