Question

The cart now moves toward the right with an acceleration toward the right of 2.50 m/s2. What does spring scale Fz read? Show your calculations, and explain.

Answer 1

Complete Question

The  complete question is shown on the first uploaded image

Answer:

The spring scale $F_2$ reads  $F_2 = 2.4225 \ N$

Explanation:

From the question we are told that

      The first force is  $F_1 = 10.5 \ N$

      The acceleration by which the cart moves to the right is  $a = 2.50 \ m/s^2$

      The mass of the cart is  m  = 3.231  kg

       

Generally the net force on the cart is  

       $F_{net} = F_1 - F_2$

This net force is mathematically represented as

      $F_{net} = m * a$

So  

        $m* a = 10 - F_2$

        $F_2 = 10.5 - 2.5 (3.231)$

        $F_2 = 2.4225 \ N$