Question

What is the mass of an object if it experiences a force of 6.57 N overt a time period of 6.65 while it changes velocity by 11.42m/s

Answer 1

We can find the mass of the object from the definition of the impulse:

$$J = F \Delta t = m \Delta v,$$

here, $J$ is the impulse, $F$ is the force acting on the object, $\Delta t$ is the time period during which the force acting on the object, $m$ is the mass of the object and $\Delta v$ is the change in the velocity.

Then, we get:

$$m = \dfrac{F \Delta t}{\Delta v} = \dfrac{6.57 N \cdot 6.65 s}{11.42 \dfrac{m}{s}} = 3.82 kg.$$

Answer:

$m = 3.82 kg.$