Question

An object with a mass of 1.5 kg changes its velocity from +15 m/s to +22 m/s during a time interval of 3.5 seconds. What impulse was delivered to the object? 3.0 N • s 11 N • s 25 N • s 56 N • s

Answer 1

The impulsion of the object is 11 Ns. Option B is the correct answer.

Impulsion

The impulsion is defined as the change in the momentum of the object when an external force is applied to the object for a certain time interval. This can be written as given below.

$\Delta p = F\Delta t$

$\Delta p = m(v-u)\Delta t$

Where p is the momentum, F is the external force, m is the mass, v is the final velocity, u is the initial velocity and t is the time.

Given that the mass m of the object is 1.5 kg and for the time interval of 3.5 seconds, the velocity of the object changes from 15 m/s to 22 m/s.

The change in the momentum of the object is given below.

$\Delta p = 1.5 (22-15)$

$\Delta p = 1.5 \times 7$

$\Delta p = 10.5 \;\rm N s$

Hence we can conclude that the impulsion of the object is 11 Ns. Option B is the correct answer.

To know more about the impulsion, follow the link given below.

https://brainly.com/question/904448.

Answer 2

Answer:

B. 11 N • s

Explanation:

11 N • s is the correct awnser on edge