Question

43. A mother pushes her 120-newton child, who is

Answer 1

5.0 N.s ( 5.0 newton second) is the magnitude of the impulse imparted  to the child by the mother

Option A

Explanation:

An impulse is a variation in the object's momentum when the object is subjected to force for a time period. Therefore, you can use the pulse to calculate the change in pulse or use the pulse to calculate the average impact force. The equation for impulse is given by,

        $J= Force \times time$

Given data:

F = 10 N

t = 0.50 s

We need to find the magnitude of the impulse. By applying the given values to the above equation, we get

             $J = 10 \times 0.5=5.0\ \mathrm{N} .\mathrm{s}$