Question

A jumbo jet has a mass of 100,000 kg. The thrust of each of its four engines is 50,000 N. What is the jet's acceleration in meters per second squared right before taking off? Neglect air resistance and friction.

Answer 1

Answer:

The acceleration is   $a =2\ m/s^2$

Explanation:

From the question we are told that

       The  mass of the jumbo jet is  $m_j = 100000\ kg$

        The thrust is  $F_k = 50000 \ N$

Generally given that the jet has four engines the total thrust is  

        $F_t = 4 * F_k$

substituting values

       $F_t = 4 * 50000$

      $F_t = 200000 \ N$

Generally the acceleration of the is mathematically represented as

         $a = \frac{F_t}{m}$

substituting values

       $a =2 \frac{N}{kg}$

Now  

        $N = kg \cdot m/s^2$

Hence

         $a =2 \frac{kg * \cdot m/s^2}{kg}$

        $a =2\ m/s^2$