Question

4 Points

A dog pushes against the front door for 1.5 seconds with a force of 215 N.
What impulse has the dog applied to the door?
O
A. 143 kg•m/s
O B. 85.2 kg•m/s
O C. 14.8 kg-m/s
O D. 323 kg*m/s
SUBMIT

Answer 1

323 kg*m/s

Step-by-step explanation:

Answer 2

Impulse = 322.5[kg*m/s], the answer is D

Step-by-step explanation:

This method it is based on the principle of momentum and the amount of movement; and used to solve problems involving strength, mass, speed and time.

If units of the SI are used, the magnitude of the impulse of a force is expressed in N * s. however, when remembering the definition of the newton.

`N*S=(kg*m/s^(2) )*s = kg*m/s`

Now replacing the values on the following equation that express the definition of impulse

`Impulse = Force * Time\\\\Impulse = 215 * 1.5 = 322.5 [kg*m/s]`